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一年级下册数学20以内口算题50道

一年级下册数学20以内口算题50道

一年级下册数学20以内口算题50道全文共四篇示例,供读者参考第一篇示例:一年级下册数学20以内口算题50道一年级下册的数学学习是培养学生基本计算能力的重要阶段,其中口算是数学学习的基础。

下面将为你准备了一份关于一年级下册数学20以内口算题50道,希望能帮助学生们巩固基础知识,提高计算能力。

1. 5 + 3 =2. 7 - 2 =3. 2 + 4 =4. 8 - 5 =5. 9 + 1 =6. 6 - 3 =7. 3 + 6 =8. 10 - 4 =9. 4 + 5 =10. 7 - 3 =第二篇示例:一年级下册数学20以内口算题50道一年级下册的数学学习内容主要包括加法、减法、乘法、除法等基础运算。

在日常的学习中,口算是非常重要的一环,能够帮助孩子提高计算能力和运算速度。

下面将为大家呈现一份关于一年级下册数学20以内口算题的50道练习题,希望能够帮助孩子们更好地掌握数学知识。

1、3 + 5 =2、8 - 2 =3、7 + 4 =4、6 - 3 =5、2 + 9 =6、5 - 1 =7、4 + 6 =8、10 - 5 =9、1 + 8 =10、9 - 4 =以上是一年级下册数学20以内口算题的50道练习题,孩子们可以按顺序逐一完成,也可以根据自己的情况选择性地练习。

口算训练不仅可以提高孩子们的计算能力,还有助于培养他们的注意力和逻辑思维能力。

希望孩子们在练习的过程中能够享受数学带来的乐趣,不断提升自己的数学水平。

第三篇示例:数学口算是学生学习数学的基础,通过口算训练可以提高学生的数学计算能力和逻辑思维能力。

下面我们将给大家介绍一份关于一年级下册数学20以内口算题的50道题目,让学生们通过这些题目的练习,提高他们的口算能力。

1. 5 + 3 = (8)2. 9 - 2 = (7)3. 4 + 6 = (10)4. 7 - 3 = (4)5. 2 + 8 = (10)6. 10 - 5 = (5)7. 3 + 4 = (7)8. 8 - 1 = (7)9. 6 + 2 = (8)11. 5 + 5 = (10)12. 7 - 2 = (5)13. 3 + 6 = (9)14. 8 - 3 = (5)15. 4 + 4 = (8)16. 10 - 2 = (8)17. 5 + 2 = (7)18. 9 - 5 = (4)19. 6 + 3 = (9)20. 8 - 4 = (4)21. 2 + 6 = (8)22. 7 - 1 = (6)23. 4 + 2 = (6)24. 9 - 3 = (6)25. 3 + 7 = (10)26. 10 - 4 = (6)28. 8 - 2 = (6)29. 6 + 4 = (10)30. 7 - 5 = (2)31. 2 + 7 = (9)32. 9 - 1 = (8)33. 4 + 3 = (7)34. 10 - 3 = (7)35. 5 + 6 = (11)36. 8 - 5 = (3)37. 6 + 5 = (11)38. 7 - 4 = (3)39. 3 + 3 = (6)40. 9 - 6 = (3)41. 4 + 5 = (9)42. 10 - 1 = (9)43. 5 + 7 = (12)45. 6 + 6 = (12)46. 7 - 3 = (4)47. 3 + 5 = (8)48. 9 - 7 = (2)49. 4 + 7 = (11)50. 10 - 7 = (3)第四篇示例:一年级下册数学20以内口算题50道数学是一门重要的学科,在小学阶段数学就是孩子们的学习重点之一。

(最新整理)20以内带括号加减法口算练习

(最新整理)20以内带括号加减法口算练习

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同时也真诚的希望收到您的建议和反馈,这将是我们进步的源泉,前进的动力。

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12+( )=16 15+()=20( )+3=12 3+( )=20 16+( )=19 ( )+12=18 3+( )=16 5+( )=14 8+()=13 ( )+4=16 5+( )=16 8+( )=16( )+11=14 ( )-6=13 ( )+14=18 9+( )=17 7+( )=11( )—8=9( )-8=3()-14=3( )+8=12( )-11=6()-6=13( )+9=15()-6=7( )—5=7( )-7=16()-9=96+( )=117+( )=1119—()=143+( )=162+( )=1715-( )=512+( )=1611-()=69+( )=178+( )=168+( )=1316+( )=193+( )=208+()=156+( )=1320—( )=12()—8=912+( )=166+()=14( )—5=715+()=2019—()=12( )+3=126+( )=11( )-6=1311+()=143+( )=20( )-8=32+()=1713—( )=68+( )=16( )+13=1311—()=9 7+( )=14 16+( )=19( )-14=3 3+()=16 15-9=( ) ( )+12=18 16—7=( ) 5+( )=14()—6=7 8+( )=13 18-()=6 ( )+4=165+13=( )12+8=( ) ( )-8=814-( )=9( )+6=13 11—( )=3 8+()=167+( )=11( )+11=14( )—7=1619—( )=12( )+5=18( )+14=189+( )=14( )—11=6( )-9=39+()=178+( )=16()+7=20( )+8=17( )+2=11( )+6=149+( )=118+( )=127+( )=126+( )=125+( )=11( )+9=13()+7=12()—7=8( )—4=12( )-7=12( )+8=17( )—2=11()+6=14( )+7=11( )-3=12( )+5=12()-7=129+( )=118+( )=1217-( )=126+( )=125+( )=1115-( )=612—( )=511-( )=513-( )=8 9+( )=13( )+5=11()+9=13( )+7=12( )-7=10 ( )+4=12( )+7=12 ( )—8=11()+2=11 ( )+6=14 ( )—7=9( )+3=12 ( )+5=12()—7=12 13+( )=18 15-( )=11 8+( )=12 7+( )=12 20-()=125+( )=1115-( )=6( )+7=12( )—8=7( )+2=11()+6=14( )—7=9()—3=12()+5=12()-7=129+( )=1120—( )=127+()=126+( )=1218—( )=1115—( )=614—( )=610+()=1511-( )=513—( )=89+( )=13( )+5=11( )+9=13( )-7=12()+7=149+( )=118+( )=127+( )=1216-( )=125+( )=1115—()=614—( )=612+()=1511-( )=513—( )=89+( )=13( )+5=11( )+9=13()-7=12( )+7=14( )+4=12 ( )+7=19( )-8=11 ( )+6=14( )+7=11()-3=16 ( )+5=12 ( )—7=12 13+( )=18 9+()=11 8+( )=12 7+( )=12 6+( )=125+( )=1115-( )=6 14—( )=6 12—( )=5 13+( )=20 13-( )=89+()=13( )+5=11()+9=13( )—7=12( )+7=14()+4=12()-6=132+()=15( )+2=173+( )=18()+8=10( )+6=12()+5=132+( )=16( )—0=15( )+9=11()+2=16( )+7=1510—()=1( )-7=13( )+7=16( )—1=141+( )=12( )+0=18()+7=190+()=18()+5=129+( )=18()-2=125+( )=1219—()=616-()=9()+7=178+( )=98+( )=14( )+1=158+( )=10()—8=23+( )=14( )+3=14()+6=17( )-3=6 ( )+7=7 ( )-7=4 ( )+9=13 14-( )=4 ( )-1=15 ( )+5=11()+6=15 16-( )=14 ( )+2=10 13—( )=7 3+()=13 13—()=8 9+( )=16()+3=11 ( )+5=91+( )=13 2+( )=19 20-( )=2 ()-0=14 19—()=719—( )=44+()=16( )—5=0()—13=716-( )=1516-( )=5( )—4=139+()=13( )+3=19()+9=167-( )=45+( )=11()+0=95+( )=9( )+4=15( )—6=124-( )=012-()=75+()=10( )+1=6( )+4=6( )+6=17( )+6=1619-( )=24+()=17( )—11=319-( )=514—( )=116+()=13( )+3=1319—( )=613-()=7()-1=14( )—1=1516—()=4( )+3=182+( )=15( )+2=173+( )=8()+8=10 ( )-6=12()+5=13 12+( )=16 ( )—0=5( )+9=11()+2=16( )+7=15 10—( )=1 ( )-7=3 ( )+7=16 ( )—1=14 1+()=12( )+3=12 ( )+7=190+( )=18 ( )-7=4( )+3=17 14—( )=5( )—17=1( )+0=619—( )=63+( )=919-( )=0( )+2=15( )+4=7( )+3=159+( )=14()+6=139—( )=0()+9=1717-()=812+()=1519-( )=1312—( )=55+( )=1416-( )=610—( )=415—( )=913-()=711-( )=69+( )=1111—( )=315—( )=107+()=165+( )=1412-( )=610—()=318-( )=814—( )=512—( )=413—( )=712-( )=78-( )=11+( )=68+( )=94+( )=149+()=1918-( )=73+()=13 11-( )=1 10—( )=2 8+( )=19 4+( )=149+( )=18 5+( )=14 18-()=9 12—( )=6 6+( )=14 12+( )=15 14—( )=6 4+( )=1215-()=6 14—()=9 15—( )=5 8+()=14 13-( )=6 16—( )=7 14+( )=1612-()=216-()=1011+( )=2010—( )=106+( )=194+( )=1415-()=512—( )=33+( )=127+( )=1414—( )=419—()=713+( )=1514-()=415—( )=712+( )=1813—( )=1316-( )=213-( )=519—()=157+( )=146+( )=118+()=1518—()=46+( )=1612+( )=1913-( )=519-()=913—( )=43+( )=1211+( )=1617-( )=716—( )=44+( )=1218—( )=915-( )=53+( )=1115-()=310-()=108+( )=1614—( )=7 19-( )=5 9+( )=17 17—()=7 6-( )=14 4+()=12 14-( )=6 5+()=13 19—( )=2 8+( )=17 15—( )=1 13-( )=27+( )=158+( )=15 11-()=1 8+( )=15 14—( )=7 7+()=12 20-( )=12 14—( )=513—()=917—( )=79+()=1918-( )=73+( )=1311-()=114-( )=713-()=312+()=165+()=1411+( )=1811+()=1419-()=917—( )=105+( )=114+( )=1218—( )=712+()=1917—()=419-( )=216—()=810-( )=86+( )=1416-( )=1016—( )=711-( )=412-()=97+()=1715—( )=416—( )=614+( )=183+( )=1112-( )=54+( )=119+( )=1215-( )=1019-( )=16+()=168—( )=516—()=87+()=9 3+( )=13 9+( )=14 6+()=16 1+( )=7 18-( )=10 10—( )=5 9+( )=13 1+( )=84+( )=10 5+()=15 10-( )=2 11-( )=8 8—( )=4 17-( )=8 17-( )=9 4+( )=14 16-( )=10 11-()=9 13-( )=3 7+( )=715-()=714-( )=84+( )=1211-( )=214-()=217—( )=73+( )=1211+()=1515—( )=519-()=411+()=1511-( )=67+( )=1817-( )=614-( )=105+( )=1511+( )=207+( )=1516—( )=811-( )=413+( )=1810-( )=79-( )=46-( )=64+( )=519—( )=1016-( )=213—()=1115-( )=511—( )=210—( )=53+( )=1115—( )=811-( )=711-( )=718—( )=320—()=84+( )=1514+( )=196+( )=10 13+( )=20 17—( )=5 10+( )=16 17—( )=9 15+( )=15 6+( )=19 15—()=9 17—( )=5 4+( )=143+()=12 4+( )=1014-( )=10 14-( )=10 9+()=13 15—( )=8 15+( )=20 13—( )=7 14—( )=413—( )=719—( )=215-()=95+()=1519—( )=815-( )=312+( )=1813-( )=616—( )=414-()=96+()=1916—( )=23+()=1218-( )=615—( )=911—( )=912—( )=312-( )=215—( )=55+( )=1112-( )=813—( )=817—( )=312-()=47+( )=1714—( )=617+( )=205+()=1415-( )=818-( )=1210—( )=413-( )=519-()=1512—( )=49+( )=1813-( )=29—( )=79+( )=149+( )=19 11—()=6 14-( )=9 16-( )=55+( )=15 17—( )=10 11+( )=13 19—()=6 11+( )=15 12—( )=2 11+( )=15 7+( )=16 9+()=17 8+()=15 7+()=14 17—( )=7 18—( )=6 7+( )=1411-( )=814—( )=518-()=212-()=56+()=166+( )=1918—()=49+( )=1815-( )=513-( )=511—( )=410-( )=36+( )=1310-( )=105+( )=1314—( )=312—( )=99+( )=1413—( )=84+()=1012+( )=1817-( )=713+( )=192+( )=1119-( )=92+( )=1117-( )=318—( )=1016-()=311+()=1514—( )=811-( )=63+( )=157+( )=175+( )=1318-( )=97+( )=1818—( )=54+( )=197+( )=16 4+()=12 19—( )=8 16—( )=9 8+( )=11 12-( )=1 4+( )=14 14+( )=19 12-( )=8 6+()=14 9+( )=17 17—( )=1 16-( )=8 11+( )=19 13-( )=1 18-( )=8 8+( )=19 7+( )=16 5+( )=15 4+()=186+( )=139+( )=1416—()=97+( )=1619—( )=76+()=96+( )=144+( )=1219—( )=43+()=114+( )=1114-( )=87+( )=146+( )=164+()=1820-( )=1611+( )=2018-( )=59-()=34+( )=119+()=1317+( )=205+( )=1411—()=318-( )=94+( )=119+( )=175+()=1112+( )=1913+()=2016—( )=410—( )=118-( )=312-( )=618-( )=717—( )=26+()=1616—( )=513-( )=711—( )=1012—( )=5 16-()=10 6+( )=16 15—( )=2 7+( )=17 8+()=11 12+( )=16 19-( )=4 11—( )=10 11-( )=5 5+()=15 6+( )=16 14-( )=7 4+()=15 7+( )=14 12-()=7 3+( )=13 15—()=9 4+()=13 5+( )=1313—()=62+( )=1413-()=79+( )=1911-( )=215-()=510—( )=74+( )=1620—( )=618—()=35+()=149+( )=1320—( )=1013—( )=711+( )=2017—()=720—()=56+( )=1014-()=715-( )=712—( )=910-( )=16+()=1120—()=1013-( )=84+()=107+( )=1613—( )=32+( )=1116-( )=49+( )=183+( )=122+( )=1113-( )=211-( )=911+( )=2016+( )=208+( )=196+( )=1414—( )=32+()=14 11-( )=10 12-( )=2 4+( )=13 20-()=6 5+( )=16 4+( )=18 9+( )=17 18—()=3 5+()=16 15-( )=7 8+( )=18 5+( )=13 9+( )=15 17-( )=8 11—( )=7 5+()=13 13—()=3 9+( )=14 14—( )=4 12-( )=716-( )=520-( )=410—( )=1015—( )=112+( )=1811-( )=1018—( )=56+( )=1411+( )=1813-()=512—( )=313+( )=1912—()=718—( )=66+( )=145+( )=1518-( )=76+( )=1017—()=619—()=23+( )=122+()=119+()=124+( )=186+( )=1617—()=515—( )=1010-()=217-( )=125+( )=1112—( )=19+( )=146+( )=1116-()=717—( )=912-( )=14+( )=188+( )=143+()=1216-( )=9 18—()=9 10—()=1 19—( )=10 15-( )=3 3+( )=1916-( )=9 12—( )=9 7+( )=14 14-( )=9 13-( )=99+( )=16 17—( )=5 3+( )=11 9+( )=1813+( )=19 14-( )=8 13-( )=312+()=20 12—( )=713-( )=84+( )=128+( )=1816—()=68+( )=1117-( )=62+( )=1613—( )=419-( )=106+( )=207+( )=199+()=1214-( )=516-( )=515—( )=27+()=134+( )=1511—( )=87+( )=1319—( )=512+( )=166+( )=195+()=1310-( )=818—( )=213+( )=199+( )=195+( )=1119-( )=919-( )=914—()=017-( )=815—()=217—()=117+( )=1612+()=1914+()=189+( )=1612+( )=1710—()=65+( )=20 14—( )=4 8+( )=11 11+()=14 10—()=1 19-( )=8 11+( )=17 10—()=2 13—()=4 11+( )=9 12+( )=14 6+( )=11 17—()=7 19-()=6 12—( )=8 7+( )=1311+( )=15 9+()=17 9+( )=11 18-( )=611+( )=417-( )=314+( )=2019-( )=1015—( )=33+()=1311-( )=216-( )=1013—()=916—( )=610-()=118—( )=412-( )=218—()=818—( )=316—( )=614—()=87+( )=123+( )=156+( )=1416—( )=720—( )=1016—( )=63+( )=1413—( )=16+()=1613-()=68+( )=153+( )=152+()=206+()=1311+()=193+( )=113+( )=1318-( )=1019-( )=919-( )=620-( )=126+()=1614-()=1216-( )=9 17—()=8 4+( )=204+()=11 13—()=7 13-()=9 15+( )=20 5+( )=16 4+( )=13 11—( )=4 6+( )=10 6+( )=14 12—( )=6 11—( )=5 9+( )=17 15-( )=10 12—( )=5 5+( )=1111-()=113—( )=417—()=819-( )=74+( )=159+()=134+( )=1414-( )=99+( )=1115-( )=1018-( )=816—( )=517—( )=816—( )=114—()=46+( )=198+()=147+()=142+( )=1114-( )=44+( )=910-( )=65+()=1310—( )=45+( )=133+( )=1311-()=56+()=1219—( )=134+( )=113+( )=1515-( )=917—( )=511—()=612—( )=812-( )=39+( )=1816—( )=34+( )=144+( )=1415-( )=8 10-()=7 12—( )=2 17-( )=9 11—()=1 15-( )=6 17—( )=3 18-()=10 7+()=18 18-( )=9 11—( )=8 2+( )=11 15—( )=9 17—( )=10 4+( )=13 10—( )=8 3+( )=14 6+( )=2018-()=1219—( )=1115-( )=159+()=1716—( )=91+( )=206+( )=148+( )=1915—( )=68+( )=154+( )=1817—( )=94+( )=1112—( )=29+( )=145+( )=113+( )=1117—()=102+( )=1112-( )=415—( )=92+( )=1813—( )=36+( )=1318—( )=620—( )=816—( )=46+( )=1517-()=1419—( )=1119-( )=108+( )=143+( )=114+()=119+( )=124+( )=1611+( )=1815-()=311—( )=7 5+( )=14 7+( )=13 18—( )=2 14—( )=6 15+()=20 12—( )=2 20—( )=5 14-( )=4 9+( )=13 10+( )=19 13-( )=7 17—()=8 4+( )=12 4+( )=16 16—( )=3 12—( )=6 5—()=14 5+( )=15 9+()=147+( )=1316—( )=1217-()=46+( )=1811—()=320-()=813+()=1912—( )=918-( )=312+( )=1912-()=410-( )=712-( )=315—( )=611-( )=17+( )=1814—( )=419—()=73+( )=1514-( )=515—( )=72+( )=1813-( )=316—( )=27+( )=168+( )=1818-()=9()+9=14( )+13=1718—()=153+()=11( )-4=97+( )=1912-( )=4()-3=1411-( )=9( )+9=12()+10=1913—( )=9( )+12=165+( )=1916-( )=14 ( )—5=7 4+( )=13 15—( )=9 2+( )=1116-( )=8( )-6=99+()=18 5+( )=14()—9=9 16—( )=9( )+9=13()—3=12 17-()=15( )+10=19( )—8=3( )-3=13 2+( )=11 15-()=98+()=19( )-7=5( )+9=182+( )=15( )+8=113+( )=1213—( )=7()-9=3()+14=17( )-6=5( )+12=187+( )=1911—()=813—()=4()—9=44+( )=1317-()=93+()=11( )+10=18( )—8=99+()=19( )-3=152+( )=14()-3=9( )+4=11()+9=18( )—2=94+()=1716-( )=7( )-7=813-( )=6( )+8=12( )+14=1615-( )=13( )+7=1116—()=133+( )=1911-( )=2()+10=1912—( )=815-( )=6( )+12=15( )-12=1 3+( )=4 15-( )=320-()=12( )+2=3()+9=18( )+12=195+( ) =10()-4=1414-( )=2()+13=179+()=165+ ( )=713-( )=919-( )=72+( )=14( )+16=1915-()=13( )+3=202+()=13()-9=4( )+9=114+()=8( )+4=1410-( )=22+( )=9()-5=816-( )=514-( )=19-( )=1( )+9=1010-()=819-( )=13+( )=85+( )=183-( )=118-()=1114+( )=16( )+2=16( )-2=1310-()=4( )-3=218-( )=6()+10=1711-( )=320-( )=9( )-1=5( )+2=138+( )=13( )+7=8 5+( )=17( )-8=6 10+( )=17( )+6=18 11-( )=8 7-()=218-( )=17()-10=58-()=614-()=6( )+6=12 ( )+1=610+ ( )=1217-( )=10()-7=11( )-2=1513-( )=4( )+1=10( )-15=2( )-3=1( )-9=8()+4=203+( )=18( )+3=155+( )=1118-( )=3( )-5=213+( )=16( )-2=9( )-5=116-( )=81+( )=8( )+1=7( )-2=18( )-4=16( )-5=914-( )=97+( )=1111-()=914-( )=82+( )=1815+( )=19( )-2=7( )-5=10( )-9=10( )-13=78+( )=10( )-15=5( )+4=198+( )=20( )+6=1917+( )=1817( )-8=9 ( )+6=14( )-2=161+()=17( )+1=19 9+( )=13 ( )+5=7 ( )+1=1510+( )=19( )-16=3( )-10=7 ( )-13=612+()=1719-( )=17 ( )-5=5()+15=16( )+4=1712-( )=8( )-3=33-( )=2( )-2=42+( )=12()-1=5()-16=4()+2=6( )-4=10( )-12=619-()=420-( )=618-( )=1216-( )=2()-1=7( )-11=7101+( )=12()+14=161+( )=10( )-7=1316+( )=17( )-18=2( )+7=9( )-6=916-( )=12( )+6=712+( )=136-( )=220-()=1011-( )=1( )-3=8191+( )=5 ( )+2=413-()=3()+17=203+( )=6 ( )+1=17 ( )-12=4( )-10=9()+1=20( )-3=620-( )=14()-1=119-( )=7( )+5=11( )+4=720( )-16=2( )+12=177+( )=1311-( )=2()+4=1517-()=6()+11=16( )+2=514+()=15( )+10=20( )+8=17( )-6=1411+( )=1717-()=15( )-1=2( )-10=413-( )=87+( )=8( )+3=10( )-5=116-()=114+( )=2016-( )=134-( )=110+( )=154+( )=516-( )=157+()=15( )+1=420-( )=12+( )=76-( )=5( )-3=16 3+( )=20 ( )+10=1210+()=115+( )=15()+15=1711+()=145+()=13( )+3=7( )+16=205+( )=612-()=115-( )=6()+1=912+()=16( )-4=4( )+3=14()+1=14()+4=88-( )=3()+10=119+()=18( )+2=12()-6=1( )-15=4( )-13=5( )-10=10( )-7=317-( )=819-()=88-( )=713-( )=513-()=1018-( )=8( )-3=11( )+9=123+( )=102+( )=19( )-6=105-( )=419-( )=2( )-13=1( )-1=912-( )=1112+( )=1818-( )=1316-( )=96+( )=9( )-11=3( )+1=13 ( )+1=8 ( )+9=20 1+( )=18 ( )+5=8()+11=13()-2=10( )+3=5 ( )-1=12 ( )+4=13()-8=12( )+8=20 ( )+8=12 18-( )=14 ( )-14=6 7+( )=1011-( )=105+( )=8( )-11=913+( )=20( )+5=1219-( )=138+( )=154+( )=7( )-2=513-( )=218-()=7( )-1=4( )+11=201+( )=1316+()=20( )-3=12( )-7=8( )+9=19()+6=202+()=16( )-6=2( )+14=18( )+10=19( )+8=912-()=6()+4=166+( )=2015-( )=5( )+2=92+( )=1515-()=1( )-8=311-( )=5()-6=8 ( )+8=11 ( )-1=14 8-()=4( )-6=6 14-( )=1317-()=117+( )=9 6+( )=8 6+( )=1916+()=19( )+10=18()+4=53+()=16( )+5=15( )-8=8()+15=19( )+4=91+( )=719-( )=148+()=1417-( )=1616-( )=7( )-1=104+( )=20( )-17=314+( )=17()+8=1517-()=2( )-8=5( )-5=33+( )=5( )-7=9( )+5=1711+( )=182+( )=514-( )=125-( )=3( )+5=18()+8=1920-( )=5( )+2=11( )-2=146+( )=14( )-5=6( )-1=1517+( )=19( )+12=1420-( )=3( )-11=69+( )=149-()=39+()=1918-( )=9 3+( )=15 ( )-14=3( )+3=18( )+9=14 ( )-1=6 7-()=3 12-( )=7 1+()=4 ( )-4=5 9-( )=2 1+( )=114+()=18()-6=4 9+( )=1011-()=4( )+1=35+( )=169+()=20( )+1=16()+19=2019-( )=1818-( )=1( )+16=1810+()=1311+( )=1620-( )=1715+()=2013+( )=1419-( )=620-( )=168+( )=174+( )=111+( )=9( )+14=172+( )=86+()=16( )+2=148-( )=2( )-1=1810+( )=16( )-10=315-( )=4()+5=134+( )=1118-()=8( )+5=915-( )=7 ( )+8=19 ( )-11=9( )+6=116+()=19( )-11=4 1+( )=2()-11=3()+4=124+( )=20( )+10=13( )+15=20( )+14=20()+12=16( )+3=18( )+5=102+( )=65+()=618-()=58-( )=7( )-8=112-( )=105-( )=36-()=5()-5=6( )-10=10( )+8=126+()=9( )+1=138-( )=216-( )=1116+( )=197-( )=3( )+1=92+( )=1912+( )=18( )+10=14( )-5=3( )+9=159-( )=22+( )=16()-2=8( )-7=9( )+4=68+( )=1912+( )=1613-( )=610-( )=54+()=16( )+9=12( )-9=7()-6=13()+10=1915-( )=510+()=11( )+4=8()-8=8()-1=13( )-1=1515-( )=1( )-19=1( )-13=4( )+2=1016+( )=209+( )=1812-( )=9()+5=19( )-4=4( )+12=18( )-6=105+( )=16( )+1=115+( )=9( )-10=216-( )=715+( )=2017-()=1113-( )=212-( ) =11( )-3=1120-( )=16( )+4=1814+()=17( )-4=113+()=1313+( )=184+( )=1919-( )=185+()=15()-2=1010+( )=181+( )=7( )-3=137-( )=6( )+8=208-()=2( )+19=2031( )+2=11()+16=2020-()=19( )-7=8 ( )+5=1718-( )=1617-( )=1317+( )=19( )-8=54+( )=618-( )=910+( )=1612-( )=515+()=179+( )=2020-( )=1514-( )=13( )-1=4( )+5=187+()=913-( )=512+( )=20( )-8=7()-17=3( )+11=138+( )=18( )-11=6( )-5=75-( )=1( )+7=116+()=8( )+8=1316-( )=419-()=12( )-12=8()+18=20()-7=10( )+10=159-( )=6( )-10=86+( )=148-( )=417-()=2()-13=5()-3=12()-3=173213+( )=19( )+5=6( )-13=3( )+11=20( )-7=4()+1=88+( )=175+()=13( )-6=3( )+2=1812-( )=7( )-1=19( )-4=1313-( )=11()+13=1513+()=20( )+16=18( )-5=156+()=1518-()=4( )-11=7( )+5=7( )-9=24-()=2( )+2=131+( )=10( )+6=811-( )=110-()=116-( )=1( )-17=24+()=155+()=7( )+3=1915-( )=34+()=1419-( )=103+( )=12( )-8=115+( )=1019-( )=127+( )=1415+( )=199-( )=718+()=19( )+3=4( )-10=18-( )=516+()=183316-( )=6()+7=14( )-2=11( )-6=92+( )=183+( )=934。

20以内加减法混合带括号-4000题可直接打印

20以内加减法混合带括号-4000题可直接打印

20以内带括号加减混合15+( )=1817-( )=17( )-7=1( )+4=19 11-( )=32+( )=2( )-4=11( )+2=9 10-( )=77+( )=8( )-4=8( )+5=16 4+( )=710-( )=8( )+1=13( )-0=9 10+( )=1311+( )=15( )+3=10( )-4=8 10-( )=713-( )=7( )-6=4( )-5=8 9-( )=112+( )=19( )-1=7( )-5=1 4+( )=610-( )=6( )-1=14( )+0=19 11-( )=610+( )=15( )-1=4( )+0=8 7+( )=119+( )=15( )+3=17( )-0=12 7-( )=37+( )=7( )-3=3( )+0=18 8+( )=148-( )=1( )-2=9( )-2=10 8-( )=516+( )=19( )-3=11( )-1=16 4-( )=212-( )=6( )-0=14( )-3=5 10-( )=713+( )=13( )+8=17( )-2=14 5+( )=911-( )=7( )-2=15( )+3=18 9-( )=17+( )=12( )+7=15( )+0=13 6-( )=36+( )=6( )-0=16( )-5=1 10-( )=35-( )=2( )-5=2( )+4=19 12-( )=916-( )=13( )+4=15( )+0=10 5-( )=511+( )=17( )-3=4( )-0=7 11+( )=1913-( )=11( )+5=17( )-1=8 11-( )=814-( )=13( )+1=12( )+4=1720以内带括号加减混合14+( )=158+( )=11( )+3=17( )+0=12 11+( )=149-( )=9( )+0=11( )+2=17 11+( )=188+( )=9( )+2=15( )-2=2 13-( )=86+( )=8( )+4=10( )+4=14 11+( )=197+( )=8( )+1=13( )-4=9 18+( )=1910-( )=7( )-4=9( )-6=3 6+( )=1110+( )=12( )+0=7( )+6=17 5+( )=810-( )=7( )-3=3( )+1=8 11+( )=186+( )=8( )-5=3( )+2=15 13+( )=1711-( )=5( )-1=6( )+2=12 15+( )=172+( )=3( )-2=11( )-5=3 12+( )=1419+( )=19( )-3=11( )+0=12 5-( )=214+( )=14( )-1=3( )+1=11 9+( )=1410+( )=18( )-4=1( )+6=14 8-( )=26-( )=2( )-0=5( )+4=13 7+( )=79-( )=9( )-7=3( )+2=10 13-( )=107+( )=12( )-2=8( )-4=11 16-( )=168-( )=4( )+1=15( )+9=19 13-( )=137-( )=5( )+4=12( )+2=19 12-( )=814+( )=18( )-0=1( )+4=14 6-( )=38-( )=2( )+3=7( )-6=7 17-( )=179+( )=10( )+0=9( )-2=1320以内带括号加减混合14-( )=114-( )=3( )-5=4( )+2=6 9-( )=211+( )=16( )-4=8( )+3=13 7-( )=48-( )=2( )-5=2( )-5=2 9-( )=915-( )=12( )+5=12( )-1=12 7-( )=54-( )=3( )-4=11( )-1=17 15+( )=1614+( )=16( )+0=10( )+2=11 9-( )=89-( )=6( )+2=17( )-0=18 13-( )=914-( )=10( )+2=16( )-0=11 5-( )=44+( )=5( )-1=7( )+3=7 9+( )=1210+( )=18( )+5=12( )+0=7 9-( )=17+( )=10( )-4=1( )-0=6 12+( )=1710+( )=11( )-1=3( )-1=9 16-( )=1617+( )=18( )+5=14( )-1=12 10-( )=914-( )=10( )+5=17( )-2=3 9-( )=612-( )=8( )+3=18( )-6=6 18-( )=185-( )=5( )-0=8( )+5=18 14-( )=1019-( )=19( )+4=17( )+0=16 4+( )=66+( )=11( )-9=1( )-6=7 8-( )=88+( )=14( )+2=8( )-3=7 10+( )=1811+( )=14( )-2=4( )+0=11 2-( )=28+( )=9( )-7=3( )-4=104+( )=64+( )=5( )-0=3( )+3=19 20以内带括号加减混合3+( )=55+( )=7( )+4=15( )+3=18 12+( )=1712+( )=12( )-6=1( )+1=8 13+( )=1913-( )=7( )+6=19( )+1=9 9-( )=99-( )=3( )+4=10( )+2=14 9+( )=1614+( )=17( )+1=17( )-2=13 14-( )=1016+( )=19( )+0=15( )+7=18 7-( )=215-( )=11( )+5=14( )+5=14 10+( )=165-( )=4( )+3=15( )+3=7 10-( )=56-( )=6( )-0=17( )-4=8 9-( )=312+( )=14( )-2=5( )-0=7 13-( )=106+( )=11( )-0=6( )-0=11 4-( )=214-( )=9( )-8=3( )-6=2 15+( )=182-( )=2( )-2=9( )+5=16 7+( )=129+( )=9( )+5=15( )+0=10 10+( )=1211-( )=7( )+4=17( )+1=13 9-( )=88+( )=9( )+1=13( )+3=9 14-( )=136+( )=7( )+3=15( )-2=1 13+( )=1718-( )=17( )-5=3( )+0=14 12-( )=614-( )=14( )+3=11( )-0=5 9-( )=74+( )=6( )+7=18( )-1=714+( )=197-( )=3( )+2=14( )+0=111-( )=36-( )=1( )-7=3( )-3=5 20以内带括号加减混合7-( )=46-( )=1( )-0=7( )-9=1 10+( )=1910+( )=13( )+2=18( )+1=7 13-( )=99+( )=12( )+2=8( )+2=5 11-( )=515-( )=14( )+0=1( )+2=16 10-( )=912-( )=12( )-2=7( )-1=7 4+( )=616+( )=17( )-4=7( )-3=13 8+( )=1013+( )=14( )-0=11( )-5=7 13-( )=1212-( )=8( )+3=19( )-2=7 2+( )=213+( )=15( )+3=12( )+3=17 7-( )=68+( )=12( )+6=17( )-9=1 12+( )=127-( )=3( )+3=18( )-1=14 12-( )=56+( )=7( )-6=2( )+0=13 15-( )=1411+( )=14( )-5=6( )-6=4 13-( )=1110-( )=10( )-0=2( )+2=16 12-( )=129-( )=3( )-4=4( )-9=1 5-( )=214-( )=12( )-1=3( )-2=3 4-( )=210-( )=8( )+7=15( )-5=2 3+( )=44+( )=6( )-5=4( )+2=13 11+( )=1810+( )=13( )-1=1( )-1=112-( )=69+( )=16( )+1=15( )+4=104-( )=216+( )=18( )+3=17( )+3=718+( )=1810-( )=3( )-3=1( )-3=11 20以内带括号加减混合7+( )=1014+( )=15( )+0=3( )+8=17 11+( )=194+( )=6( )-4=10( )+1=14 4+( )=511-( )=9( )-7=2( )+3=10 8-( )=110+( )=17( )+7=15( )-4=11 11-( )=510+( )=19( )-4=4( )-1=2 8-( )=111-( )=9( )-7=5( )-2=3 11-( )=86+( )=8( )+0=12( )+9=19 18-( )=189-( )=9( )+1=16( )+0=15 10+( )=119+( )=9( )-7=2( )-4=8 13+( )=1610-( )=3( )+3=7( )+4=17 10+( )=114+( )=7( )-3=4( )-1=3 10+( )=144-( )=4( )-1=3( )+0=4 8-( )=718-( )=17( )-7=4( )+1=10 7+( )=1113+( )=14( )+6=13( )+0=17 15+( )=165-( )=4( )+0=3( )-3=5 11-( )=1111-( )=4( )+2=5( )-3=2 13-( )=99+( )=15( )-0=6( )-1=12 11+( )=124+( )=6( )-3=7( )-2=158-( )=111-( )=11( )-4=5( )-0=1116-( )=1315-( )=11( )-4=4( )-4=8 13+( )=1416-( )=16( )-4=1( )+2=1611-( )=313+( )=13( )-3=3( )-5=9 20以内带括号加减混合11+( )=1410-( )=1( )+4=14( )-0=4 8+( )=107-( )=1( )+1=3( )+0=7 13-( )=138-( )=7( )-0=2( )-2=12 14-( )=118+( )=8( )-2=14( )+8=18 11+( )=1910-( )=5( )+1=12( )+0=1 6+( )=611-( )=10( )+5=15( )+0=17 3-( )=113+( )=18( )+0=17( )+3=15 3+( )=510+( )=14( )-7=2( )+0=12 10+( )=1311-( )=5( )-2=3( )-1=12 11+( )=1812+( )=13( )+2=18( )+5=13 11+( )=1312-( )=8( )+0=7( )+0=18 11-( )=413-( )=11( )+4=10( )+4=13 13+( )=1811-( )=4( )-7=3( )-0=9 4-( )=17-( )=6( )-3=10( )-3=2 14-( )=1018-( )=17( )+2=10( )+5=18 6-( )=64+( )=6( )+2=5( )+0=10 12+( )=176-( )=3( )-4=4( )+0=87-( )=26-( )=1( )-1=16( )+6=144+( )=411+( )=13( )+3=9( )-5=7 11+( )=1717-( )=16( )-1=8( )-3=7 6+( )=1015-( )=13( )-5=4( )+1=36+( )=77+( )=8( )-0=17( )-1=5 20以内带括号加减混合13-( )=78+( )=15( )-4=5( )+3=8 15+( )=182-( )=2( )-8=1( )-3=13 7-( )=59+( )=10( )+5=11( )+1=14 17+( )=1910+( )=10( )+0=9( )+3=7 6+( )=715-( )=11( )-4=7( )+3=8 6+( )=94-( )=2( )-4=5( )+0=18 13-( )=917+( )=18( )+8=19( )-0=15 3-( )=27-( )=6( )-2=1( )-7=2 6+( )=106+( )=6( )+0=5( )-2=10 12+( )=131+( )=1( )-4=2( )+1=19 8+( )=1115+( )=16( )-1=1( )-8=1 6-( )=59+( )=11( )-1=3( )-2=6 18+( )=198-( )=5( )-5=2( )-7=2 7+( )=1214+( )=16( )-5=9( )+0=16 13-( )=97+( )=8( )+1=19( )-1=15 13-( )=129-( )=6( )-1=11( )+0=1213+( )=178-( )=8( )+4=16( )-2=113-( )=817+( )=18( )-2=14( )+5=17 12+( )=187-( )=5( )-2=2( )-6=3 11-( )=32-( )=1( )-2=10( )+2=18 6-( )=110-( )=4( )-5=3( )+3=144+( )=77+( )=11( )+8=18( )-5=9 20以内带括号加减混合6+( )=77+( )=8( )+6=18( )-0=7 15-( )=148+( )=11( )+1=14( )+1=5 11+( )=127-( )=1( )+0=2( )-8=2 10+( )=1116+( )=16( )-3=4( )-3=5 12+( )=1810+( )=13( )-0=18( )-4=9 11+( )=117-( )=1( )+7=17( )-6=4 5+( )=513+( )=19( )-5=5( )+9=19 5+( )=618-( )=18( )-0=19( )+1=4 5+( )=614-( )=9( )-4=5( )-0=15 12-( )=1012-( )=8( )+7=19( )-2=3 6-( )=610+( )=11( )+1=10( )-1=3 7+( )=93-( )=3( )-0=1( )+7=17 10+( )=1012+( )=18( )-0=16( )+1=9 1-( )=114-( )=12( )+9=19( )+2=15 9-( )=112-( )=12( )-3=12( )-2=147-( )=411-( )=10( )+2=12( )-3=129+( )=124+( )=5( )-2=6( )+6=18 11+( )=1614+( )=17( )+0=6( )-0=14 3-( )=18-( )=6( )+2=6( )+0=13 11+( )=168+( )=11( )-0=7( )-4=4 11+( )=187+( )=13( )+5=12( )+5=1611-( )=1018+( )=19( )-5=1( )+4=10 20以内带括号加减混合16-( )=1412-( )=10( )-4=3( )+1=11 12-( )=97+( )=11( )+3=18( )-1=6 4+( )=711+( )=19( )+0=4( )-7=3 14-( )=113-( )=2( )+8=18( )+8=19 16-( )=1614-( )=12( )-2=13( )+1=19 3+( )=413-( )=7( )-0=19( )+0=7 13+( )=1816-( )=15( )+4=16( )-0=5 17+( )=1714+( )=15( )-0=14( )-1=3 16-( )=144-( )=2( )-1=12( )-1=4 6+( )=116+( )=6( )+1=7( )+5=17 11-( )=35-( )=3( )+1=17( )+0=11 11+( )=184-( )=1( )+1=11( )+1=16 13-( )=711+( )=16( )+2=10( )+1=9 14-( )=1410+( )=14( )+3=9( )+1=129+( )=1412+( )=18( )-4=8( )+2=89+( )=123+( )=4( )-8=1( )-2=8 11+( )=1610-( )=1( )+0=8( )+5=18 18-( )=1710-( )=3( )-1=10( )-1=17 8+( )=147-( )=1( )-1=11( )+0=3 6+( )=96-( )=2( )+7=16( )+5=14 9+( )=142+( )=3( )-4=7( )+5=1210+( )=1512-( )=5( )+7=19( )+2=17 20以内带括号加减混合10-( )=88-( )=2( )-4=1( )+4=18 12+( )=1311+( )=18( )+4=18( )-3=12 11-( )=1018-( )=17( )-1=12( )+2=16 10-( )=45+( )=8( )-3=6( )+3=15 10+( )=1113+( )=13( )+7=18( )-3=8 6-( )=413-( )=12( )-1=13( )+3=15 7+( )=1214-( )=13( )-5=1( )+4=15 7+( )=139+( )=17( )+4=14( )-0=5 12+( )=1814+( )=18( )-0=4( )+0=2 13+( )=1616-( )=16( )+2=19( )+0=14 3-( )=111+( )=18( )-0=1( )-5=3 10+( )=1016-( )=13( )-2=12( )+2=10 10+( )=156+( )=8( )+1=10( )-2=18+( )=114-( )=3( )+2=11( )+4=1412-( )=85-( )=4( )+5=16( )-1=3 13-( )=1215+( )=19( )+1=8( )+5=19 4-( )=113+( )=15( )-2=12( )+0=19 18+( )=1914-( )=14( )+0=11( )+3=13 10+( )=153+( )=4( )-2=9( )+3=7 16-( )=167+( )=12( )-4=2( )-2=11 15-( )=1114-( )=10( )-2=1( )+0=63+( )=418-( )=17( )-1=9( )-3=3 20以内带括号加减混合9+( )=1511+( )=17( )+7=19( )-0=18 16-( )=165+( )=6( )+1=16( )+1=11 14+( )=168+( )=11( )+7=16( )-1=7 13-( )=97+( )=8( )+4=18( )-5=3 4-( )=26+( )=10( )-1=5( )+5=13 14-( )=136-( )=6( )+6=15( )-0=17 9+( )=97+( )=12( )+2=10( )-3=10 6+( )=1017+( )=18( )+6=16( )-3=9 7-( )=511+( )=17( )+1=14( )-2=6 14+( )=1917-( )=15( )+6=16( )-1=15 4-( )=214-( )=13( )-3=7( )-3=5 16-( )=165-( )=2( )+1=16( )+4=1611+( )=1116-( )=13( )-2=4( )-6=513+( )=195-( )=4( )-3=2( )+4=10 9-( )=810-( )=3( )+1=15( )-1=10 14-( )=108-( )=5( )-5=5( )-4=2 4-( )=36+( )=6( )+3=9( )-1=7 4-( )=212+( )=13( )-5=5( )+4=17 10+( )=107+( )=10( )+2=16( )-7=3 3+( )=310+( )=17( )+2=11( )-4=8 17+( )=178-( )=6( )-0=18( )-0=28-( )=69+( )=16( )+6=16( )-1=6 20以内带括号加减混合14-( )=1012-( )=12( )+6=14( )+1=10 11+( )=198-( )=1( )+2=13( )+7=18 8-( )=47+( )=12( )-0=12( )-2=6 11+( )=136-( )=2( )-0=4( )-0=6 8+( )=810-( )=8( )+2=16( )-0=17 8-( )=715-( )=11( )-3=8( )+5=11 6+( )=88-( )=6( )+0=13( )-4=2 4+( )=65-( )=3( )-0=3( )-1=10 17-( )=1610-( )=5( )+4=11( )+1=16 10+( )=199+( )=12( )+2=5( )-4=8 8+( )=1211+( )=14( )+6=16( )-7=59-( )=515+( )=19( )+5=13( )-4=87-( )=611-( )=10( )-2=12( )+7=16 7-( )=411-( )=6( )-2=1( )-4=9 9+( )=1710+( )=19( )+1=11( )-0=18 18-( )=1713+( )=17( )-3=4( )+1=12 3+( )=512-( )=10( )+2=10( )-7=1 3-( )=219+( )=19( )+1=11( )+2=17 17+( )=1811+( )=11( )+3=17( )+6=15 12-( )=1210-( )=7( )+0=15( )-7=3 9+( )=176+( )=9( )-5=5( )+2=126-( )=314-( )=11( )+3=13( )+5=15 20以内带括号加减混合9+( )=118+( )=11( )+3=15( )-2=1 12+( )=1811-( )=6( )+8=18( )+2=15 19+( )=194-( )=4( )-2=14( )+2=8 12+( )=1216-( )=15( )+8=19( )+4=14 6+( )=1115+( )=19( )+6=16( )+8=19 17+( )=1717-( )=17( )+7=17( )-2=4 6+( )=117-( )=1( )-0=13( )-2=1 11+( )=1411-( )=6( )+6=15( )-2=5 16-( )=169-( )=3( )-0=13( )+7=19 8-( )=211-( )=9( )+1=8( )-2=1114-( )=1110-( )=3( )-7=4( )-2=1416+( )=1711-( )=4( )+4=16( )+0=5 3+( )=42+( )=2( )-2=6( )-5=4 15-( )=135+( )=8( )+3=10( )-4=11 10-( )=413+( )=13( )+5=17( )-3=4 8+( )=86-( )=5( )-7=4( )+1=15 17-( )=1613-( )=12( )+4=14( )-1=12 12+( )=1311-( )=11( )+2=5( )+2=10 8+( )=97+( )=11( )+5=12( )+0=11 11-( )=1012-( )=5( )-3=7( )-0=9 12+( )=1617+( )=19( )-0=15( )-2=35-( )=313-( )=11( )+0=16( )+2=6 20以内带括号加减混合13+( )=147+( )=7( )-5=7( )+7=15 13-( )=1012-( )=8( )+5=12( )-6=6 8-( )=812-( )=9( )-0=10( )-1=2 8+( )=1518+( )=18( )+4=16( )-1=3 14-( )=145-( )=1( )-1=10( )+0=3 9+( )=1614+( )=16( )+0=12( )+2=5 10+( )=1212+( )=18( )+7=19( )-8=3 8+( )=1113-( )=7( )-0=12( )+5=13 11+( )=176+( )=11( )-4=8( )+2=1514-( )=1211+( )=17( )-5=4( )-2=413-( )=138+( )=11( )+3=16( )+1=9 12-( )=812+( )=12( )+4=17( )-5=6 7+( )=127+( )=11( )-3=13( )+1=5 10-( )=210+( )=18( )+0=11( )+3=14 5+( )=99+( )=15( )-0=13( )+1=17 12-( )=612+( )=12( )-0=2( )-3=7 8+( )=106-( )=6( )-3=10( )-2=3 15-( )=1411+( )=12( )-1=5( )+0=10 9-( )=79-( )=1( )+2=9( )+6=13 9-( )=88+( )=12( )-1=1( )-5=6 11+( )=128-( )=8( )+3=13( )+4=1010+( )=1117+( )=17( )-5=1( )+1=5 20以内带括号加减混合9-( )=214+( )=19( )-0=11( )-6=7 11+( )=1312+( )=16( )+4=19( )-2=12 10-( )=28+( )=14( )+0=12( )-1=5 19-( )=193-( )=1( )+0=6( )+8=18 16+( )=199+( )=14( )-2=9( )+3=13 11+( )=143-( )=2( )+0=6( )+7=15 13+( )=139+( )=16( )-1=12( )-8=1 12+( )=1417-( )=15( )+0=17( )+7=183+( )=411+( )=18( )+0=2( )+7=1810+( )=1910+( )=18( )-5=4( )+5=16 7+( )=95-( )=5( )+0=6( )-3=12 6-( )=311-( )=9( )+4=10( )-4=10 13-( )=95-( )=3( )-2=11( )+7=19 11-( )=516-( )=16( )+2=16( )+8=19 3-( )=311+( )=16( )+3=17( )-3=1 17-( )=168+( )=14( )-2=13( )-4=1 13-( )=918-( )=17( )+1=12( )-1=7 9+( )=1511-( )=9( )-5=4( )+1=10 14+( )=149+( )=16( )-1=11( )-9=1 12+( )=147+( )=13( )+0=11( )+6=17 6+( )=614-( )=9( )-0=15( )-4=71-( )=16+( )=9( )-0=15( )-6=2 20以内带括号加减混合9+( )=132-( )=2( )-2=6( )+2=18 12+( )=165-( )=1( )-2=2( )+1=9 12+( )=198-( )=4( )+3=17( )-7=1 11-( )=1015+( )=19( )+2=18( )+0=3 12+( )=1513+( )=16( )+0=6( )-7=1 11+( )=135-( )=5( )+3=7( )-0=11 15+( )=1911-( )=5( )-5=4( )-3=106+( )=98-( )=1( )+1=14( )-0=317-( )=1613-( )=10( )-1=15( )-1=10 5-( )=412+( )=14( )-2=6( )+7=19 7+( )=79-( )=6( )+5=17( )-1=16 12+( )=1819-( )=19( )-0=12( )-0=14 11-( )=314+( )=14( )+1=10( )+4=16 15-( )=143+( )=3( )-6=6( )+0=10 8+( )=148+( )=14( )+0=4( )-3=4 16-( )=1515+( )=19( )+2=17( )-6=2 13+( )=1410+( )=17( )-0=7( )+0=1 15+( )=159-( )=6( )+5=17( )+0=3 15-( )=1517-( )=16( )-4=2( )+2=9 8+( )=1313+( )=14( )-5=1( )-3=9 7-( )=57+( )=8( )-7=1( )+0=39-( )=89-( )=8( )-3=10( )+5=14 20以内带括号加减混合15-( )=1510+( )=18( )+6=16( )+0=11 8+( )=1110-( )=5( )-0=4( )-3=8 15-( )=1514-( )=9( )-0=12( )-2=14 12+( )=183-( )=1( )+0=18( )+1=15 17+( )=1812-( )=12( )+0=9( )-1=8 14+( )=1413+( )=15( )+3=18( )+1=159+( )=135-( )=3( )+5=18( )-0=128-( )=112+( )=18( )+7=18( )+0=6 6-( )=46+( )=10( )-5=3( )+2=8 4-( )=310+( )=19( )+0=16( )+3=15 2-( )=216+( )=17( )+0=10( )+3=18 11-( )=108+( )=15( )-1=14( )-4=3 6-( )=210-( )=8( )-4=9( )-1=9 9-( )=36+( )=11( )+1=12( )+3=18 7+( )=812+( )=18( )-1=7( )+0=18 12-( )=914+( )=19( )+0=14( )-0=9 8-( )=714-( )=9( )+0=12( )+3=9 11+( )=1113-( )=12( )-0=7( )+6=15 7-( )=610-( )=6( )+5=18( )+2=11 15-( )=142-( )=1( )-8=2( )+1=17 13+( )=1812-( )=11( )-2=1( )-4=817+( )=171-( )=1( )+0=16( )+4=18 20以内带括号加减混合13+( )=133-( )=1( )-6=6( )-1=16 6-( )=619-( )=19( )+7=17( )-1=16 13-( )=1210-( )=6( )+5=13( )-1=7 11-( )=47-( )=3( )-1=3( )+1=15 11-( )=98-( )=6( )-3=10( )+4=116-( )=217+( )=19( )+8=18( )-0=1913-( )=1016+( )=17( )+1=4( )+1=17 14-( )=917-( )=15( )+6=15( )-5=6 9-( )=37-( )=2( )+6=17( )+1=4 10+( )=1312+( )=19( )+2=13( )-3=10 16+( )=1618+( )=19( )+0=19( )+3=17 11+( )=1111+( )=11( )-3=2( )-3=4 13-( )=1211-( )=3( )-6=4( )-4=11 12+( )=1610-( )=7( )-4=2( )-3=7 11-( )=88+( )=13( )+4=19( )-1=12 10-( )=33-( )=1( )+2=10( )+2=9 4+( )=510-( )=8( )-3=11( )+0=1 5+( )=910-( )=2( )-6=6( )+3=17 13-( )=88+( )=13( )-0=11( )-4=3 9-( )=72-( )=2( )+3=16( )-1=13 9+( )=1419-( )=19( )-5=4( )-2=814+( )=185+( )=6( )-0=13( )+0=8 20以内带括号加减混合11-( )=410-( )=5( )-3=4( )+1=16 18+( )=1916+( )=17( )-1=16( )+2=10 16-( )=1410+( )=13( )+0=15( )+2=6 10+( )=136-( )=5( )-0=19( )+0=917+( )=183-( )=1( )+1=10( )+5=1910+( )=1113-( )=11( )-1=3( )-3=9 8+( )=111-( )=1( )+6=18( )-1=4 13-( )=126+( )=7( )-0=17( )-2=11 11-( )=314-( )=10( )+2=17( )+4=14 2-( )=110+( )=16( )+4=17( )+1=15 8+( )=92-( )=2( )-3=3( )-4=4 13+( )=1715+( )=15( )+5=14( )-3=7 6-( )=113+( )=19( )-4=8( )+2=8 18+( )=187-( )=6( )+2=11( )+0=4 10-( )=76-( )=4( )+0=6( )+7=17 5+( )=612-( )=9( )+4=16( )-7=2 12-( )=107-( )=6( )+0=13( )+5=18 13+( )=1416-( )=16( )+4=10( )-6=6 5-( )=518-( )=17( )+4=15( )+0=15 13+( )=1714-( )=10( )-2=10( )+1=10 4-( )=410-( )=2( )-0=8( )-1=111-( )=114+( )=7( )-9=1( )+7=16 20以内带括号加减混合10+( )=1318-( )=18( )-4=8( )-2=2 16+( )=1812-( )=12( )-2=13( )-3=4 12+( )=1617+( )=18( )-3=11( )-1=148+( )=810+( )=17( )+8=18( )-1=87-( )=714+( )=17( )-3=1( )+2=16 19-( )=1914+( )=18( )-4=2( )-2=3 16+( )=186+( )=10( )+1=8( )-3=4 10+( )=1411+( )=17( )+8=19( )+6=13 7-( )=510-( )=8( )-6=7( )+8=18 13+( )=1616+( )=16( )-1=3( )+5=16 15-( )=156+( )=9( )-0=16( )+5=15 11+( )=1811+( )=17( )+4=11( )-6=7 4+( )=49+( )=13( )+0=3( )+1=8 15-( )=1414+( )=16( )-4=6( )-3=13 15-( )=1510-( )=10( )+7=15( )+4=17 16-( )=147-( )=5( )-5=8( )+8=19 11+( )=138+( )=15( )+3=12( )+1=13 19-( )=1911-( )=7( )-1=11( )+6=19 10+( )=108-( )=5( )+4=17( )+1=19 17-( )=1713-( )=13( )-7=5( )-8=3 15+( )=1710+( )=12( )+0=12( )+3=107-( )=311-( )=6( )+0=1( )-0=13 20以内带括号加减混合11+( )=111+( )=1( )+1=19( )+1=7 1-( )=115-( )=12( )+1=13( )+6=1910-( )=112-( )=8( )+4=18( )+2=178-( )=512-( )=12( )+1=7( )+2=16 19-( )=1916-( )=13( )+4=14( )-0=16 3-( )=210+( )=14( )-0=3( )-5=6 8-( )=17-( )=1( )-2=2( )+4=19 8+( )=139+( )=15( )-1=8( )+9=19 10-( )=66-( )=5( )+0=8( )+2=8 5+( )=618+( )=18( )+4=18( )-2=3 10+( )=1914+( )=15( )-1=4( )-2=13 16+( )=183+( )=3( )+4=13( )+1=14 11+( )=187+( )=10( )+7=15( )-4=10 14+( )=176-( )=5( )-1=14( )+3=19 9+( )=1419+( )=19( )-3=3( )-6=3 6-( )=510-( )=9( )-0=2( )+1=16 14-( )=1113+( )=18( )-2=11( )-2=10 11-( )=1013+( )=13( )-1=3( )-2=2 15+( )=155-( )=1( )+2=10( )-5=6 9-( )=612-( )=10( )+2=19( )-5=6 2-( )=19+( )=13( )+1=11( )-5=35+( )=811-( )=5( )+6=14( )+0=17 20以内带括号加减混合9-( )=19+( )=14( )+3=14( )+6=134+( )=518-( )=17( )+5=17( )-1=13 13-( )=99-( )=6( )+4=16( )-2=2 9+( )=178+( )=15( )+0=8( )+4=13 7+( )=115+( )=7( )-0=4( )+3=14 7+( )=1111-( )=11( )+4=15( )+2=18 11+( )=1114-( )=13( )-1=14( )+7=16 15+( )=1814-( )=12( )+4=10( )+0=12 7+( )=817+( )=18( )-1=6( )+6=15 10-( )=812-( )=10( )-6=3( )-3=8 10+( )=1514-( )=10( )-0=6( )-3=10 6-( )=310+( )=12( )-0=5( )-5=8 6-( )=64-( )=2( )-1=11( )+7=15 10-( )=69-( )=5( )+0=17( )+4=11 9+( )=157+( )=8( )+2=12( )-8=2 16+( )=2311+( )=19( )+1=14( )+1=8 9+( )=199-( )=6( )+4=13( )+2=10 13+( )=179-( )=4( )+2=17( )-0=1 9+( )=1712-( )=7( )+3=17( )+2=10 11+( )=1212+( )=17( )+2=12( )-6=3 19-( )=196+( )=11( )+3=16( )-4=5 1-( )=15+( )=5( )-0=16( )-0=4 20以内带括号加减混合12-( )=1214-( )=13( )+0=11( )-5=7 9-( )=613+( )=18( )-8=3( )+2=15 19+( )=198-( )=4( )+5=14( )-4=9 11-( )=109+( )=9( )+0=7( )+5=11 6+( )=99-( )=8( )+0=5( )-2=9 8+( )=911-( )=10( )+8=18( )-4=4 4+( )=411-( )=11( )+5=12( )+0=2 9-( )=86+( )=6( )+3=9( )+4=15 13-( )=815+( )=15( )+0=13( )+1=11 4-( )=317-( )=15( )-1=17( )-5=6 16-( )=1311-( )=3( )-7=3( )+3=15 8-( )=37-( )=1( )+1=9( )+0=5 10+( )=1510+( )=17( )-0=2( )-1=15 3-( )=211-( )=11( )-7=2( )-0=17 9+( )=912+( )=16( )+0=5( )-0=2 7+( )=108+( )=13( )-5=6( )-6=1 13+( )=1314+( )=19( )-1=2( )+6=19 10-( )=54+( )=5( )+0=11( )+1=17 17-( )=1614+( )=15( )+4=16( )-4=7 14+( )=1412+( )=15( )-7=5( )+6=14 10+( )=196-( )=3( )-3=13( )-1=12 9+( )=178+( )=12( )-3=4( )-1=47+( )=719-( )=19( )-8=2( )+4=11 16+( )=1714+( )=17( )+8=18( )+0=5 8-( )=15+( )=5( )-1=7( )+8=18 9-( )=711-( )=7( )+7=17( )+1=19 4+( )=43-( )=1( )+3=16( )-2=5 6+( )=1116-( )=14( )-3=13( )-5=2 15-( )=148-( )=4( )+8=19( )+1=12 11+( )=1813-( )=7( )+4=17( )-1=14 8-( )=36-( )=5( )+2=15( )+0=9 5-( )=113+( )=17( )-1=7( )+3=10 4-( )=46-( )=4( )-1=16( )+7=15 14+( )=1810+( )=15( )+0=1( )-0=18 8-( )=116+( )=17( )-0=4( )-3=6 8+( )=99-( )=1( )-1=5( )-1=16 9-( )=93+( )=3( )+0=8( )-4=4 2-( )=14-( )=2( )+5=12( )-6=2 5+( )=511+( )=15( )+6=17( )+0=4 19+( )=1918+( )=18( )+2=9( )+1=10 12+( )=1310+( )=18( )-1=1( )-8=1 3+( )=415+( )=17( )+0=15( )-4=3 9-( )=17+( )=10( )-2=6( )-3=10 12-( )=1211-( )=4( )+0=5( )+0=120以内带括号加减混合2-( )=113-( )=13( )-1=7( )-4=8 9-( )=43-( )=3( )-1=6( )-7=3 6-( )=614-( )=11( )-0=1( )+6=13 11-( )=713-( )=10( )-6=3( )+1=6 2+( )=23-( )=2( )+2=15( )-5=9 12+( )=147-( )=3( )-0=11( )-6=1 10+( )=192+( )=3( )+4=10( )+1=18 7-( )=19+( )=13( )-0=15( )+2=8 9-( )=95+( )=5( )-4=3( )-8=2 16-( )=149-( )=1( )-0=19( )-4=3 12-( )=86+( )=6( )+0=3( )+6=19 18+( )=194-( )=3( )+0=6( )-4=8 4+( )=43-( )=1( )+1=7( )+3=14 1-( )=15+( )=7( )-1=17( )+7=15 16-( )=159+( )=10( )+2=16( )+2=13 14+( )=159-( )=7( )-0=18( )+0=17 12+( )=169-( )=6( )-5=3( )+0=9 14+( )=1711+( )=11( )+1=11( )-3=4 2+( )=215+( )=15( )-6=2( )-2=3 12-( )=68+( )=15( )-2=7( )-3=2 8+( )=812+( )=12( )+5=11( )+3=7 10-( )=96+( )=8( )+2=13( )-0=9 13+( )=1515-( )=12( )+2=13( )-4=420以内带括号加减混合11+( )=1410+( )=11( )-2=15( )-1=14 5+( )=92+( )=2( )-1=11( )+3=11 14+( )=177-( )=7( )-5=4( )+1=16 9-( )=710-( )=6( )-9=1( )+6=17 11+( )=1517-( )=16( )+1=18( )+4=9 15+( )=1613-( )=13( )-2=8( )+0=11 1-( )=15+( )=5( )-5=9( )-1=13 13-( )=812+( )=17( )-3=6( )-1=11 6+( )=713-( )=11( )+4=18( )-3=13 4+( )=611-( )=9( )-2=5( )+3=17 10-( )=818+( )=19( )+7=17( )+2=18 14+( )=1510-( )=9( )+3=15( )-0=10 11-( )=64+( )=5( )+0=15( )+1=19 6+( )=1116+( )=16( )+8=19( )+2=18 3-( )=210+( )=16( )+2=15( )+1=7 13+( )=1513-( )=13( )-2=1( )+0=5 15+( )=176-( )=1( )-5=7( )-6=3 17-( )=178-( )=7( )+5=12( )+6=17 15+( )=187+( )=8( )+2=6( )-3=8 11-( )=64+( )=7( )-2=10( )-1=9 13+( )=1817-( )=16( )+2=15( )+4=13 6-( )=64-( )=1( )-4=3( )+1=1320以内带括号加减混合7+( )=1010-( )=6( )-0=8( )+1=3 11-( )=810-( )=6( )+4=17( )+3=18 4-( )=311-( )=7( )+1=4( )+5=14 12+( )=155+( )=5( )-2=6( )+4=14 9+( )=1011-( )=5( )+7=18( )+2=19 10-( )=811+( )=15( )-2=1( )+2=18 12+( )=1513+( )=18( )+5=11( )-7=1 6+( )=1115+( )=16( )-0=3( )-0=2 2+( )=212+( )=13( )-1=14( )+1=8 19-( )=1911-( )=4( )+2=8( )-3=7 17+( )=1713+( )=18( )-0=6( )+5=13 5-( )=17+( )=13( )+3=14( )+3=18 18-( )=179+( )=13( )+3=8( )-1=6 15+( )=1719+( )=19( )+6=17( )-3=5 10-( )=89+( )=12( )-8=2( )-5=9 15-( )=149+( )=16( )+2=7( )+3=16 8-( )=812-( )=9( )-5=7( )-8=2 4-( )=29+( )=14( )-8=1( )-3=1 8+( )=134+( )=5( )-0=19( )+2=12 10-( )=512-( )=7( )-2=1( )+0=10 10-( )=610+( )=10( )-2=5( )-3=97-( )=79-( )=6( )-4=11( )-4=6 20以内带括号加减混合12-( )=59+( )=11( )-0=18( )-4=9 11-( )=813-( )=11( )-1=10( )+3=16 13-( )=1312-( )=12( )+3=9( )+2=19 10+( )=1514+( )=14( )-0=5( )+4=18 12-( )=117-( )=4( )-2=14( )-1=15 16-( )=1311-( )=7( )+8=17( )+1=13 10-( )=310+( )=19( )-3=9( )-7=3 13-( )=1318-( )=18( )-1=13( )-2=2 9-( )=811-( )=7( )+6=15( )-5=4 7+( )=1319+( )=19( )+3=19( )+2=19 6+( )=1113+( )=17( )-1=8( )+5=11 9+( )=135-( )=1( )+0=14( )+5=14 10-( )=24+( )=5( )-0=13( )-3=12 13+( )=1617-( )=17( )-5=5( )-3=10 14+( )=1812+( )=14( )-2=8( )-3=11 11+( )=145-( )=4( )+5=14( )+0=11 16+( )=1911-( )=7( )-3=5( )+3=8 9+( )=1116+( )=16( )+5=11( )-4=2 19-( )=1912-( )=6( )-0=15( )-4=2 15-( )=124+( )=4( )+0=3( )-1=126+( )=95-( )=5( )+0=12( )+2=915+( )=169+( )=15( )-1=17( )+1=3 20以内带括号加减混合4+( )=44+( )=4( )-3=7( )+3=12 14-( )=122+( )=3( )+6=13( )-3=13 14-( )=1210+( )=15( )+4=16( )-2=1 7+( )=111+( )=1( )-6=4( )+4=19 18-( )=176+( )=7( )-0=3( )+4=9 9-( )=715-( )=15( )+1=17( )-3=11 8-( )=417+( )=18( )-6=3( )+5=17 18+( )=1917-( )=16( )+1=8( )-8=2 18-( )=1813+( )=16( )+5=12( )-1=4 16-( )=1614+( )=17( )+1=3( )+0=17 14+( )=166+( )=11( )+0=14( )+1=9 8+( )=123-( )=2( )-6=3( )+0=2 15+( )=1911-( )=11( )+5=15( )-4=11 6+( )=617+( )=17( )-0=12( )-1=11 10-( )=511+( )=13( )-0=11( )-5=2 14+( )=1711-( )=7( )-2=13( )+0=18 9+( )=1714-( )=12( )+1=15( )-3=13 14+( )=174-( )=1( )-3=6( )+5=15 16-( )=1311+( )=18( )+5=17( )+6=1713+( )=146-( )=2( )-0=8( )+2=811-( )=910-( )=2( )-2=3( )-7=46+( )=116-( )=3( )-8=1( )-1=4 20以内带括号加减混合4-( )=110+( )=11( )+3=18( )-3=2 10+( )=1714+( )=14( )-0=12( )-6=7 13+( )=1410+( )=10( )-4=8( )+3=9 11-( )=618-( )=17( )+2=16( )+5=17 14-( )=1215+( )=16( )+0=11( )+4=19 9-( )=34+( )=7( )+2=16( )-4=6 6-( )=28+( )=9( )-0=12( )+3=8 4+( )=411-( )=4( )+2=7( )-1=7 11+( )=168+( )=13( )+8=18( )+4=10 10+( )=155+( )=9( )-5=1( )-2=11 14+( )=173+( )=5( )+4=12( )+1=4 13-( )=106-( )=6( )+4=14( )+0=12 6-( )=49-( )=1( )-6=6( )-5=7 13-( )=1114+( )=14( )-2=13( )-3=10 4+( )=59-( )=3( )+1=5( )+1=15 10-( )=416-( )=13( )-3=12( )-0=8 13+( )=1313+( )=16( )+3=16( )-9=1 17-( )=1711-( )=9( )+5=19( )+3=711+( )=186-( )=3( )+5=19( )+3=1716+( )=1614+( )=19( )-3=10( )-1=9 11+( )=1311+( )=19( )-2=2( )+2=179-( )=810-( )=3( )-4=6( )+3=16 20以内带括号加减混合17+( )=186+( )=8( )-6=1( )+1=11 10-( )=34-( )=1( )+6=14( )+4=14 16+( )=1916+( )=18( )+4=17( )-1=15 4-( )=25+( )=6( )+0=1( )+6=19 2+( )=310+( )=16( )+2=6( )+2=5 11+( )=178+( )=13( )-2=12( )+5=16 7-( )=612+( )=18( )+1=18( )-0=17 2+( )=316-( )=13( )-1=2( )-2=14 8-( )=49+( )=11( )+0=14( )-0=15 18+( )=197+( )=10( )+2=14( )-7=5 6+( )=1010-( )=8( )+0=5( )+4=17 14+( )=167+( )=10( )+5=12( )+3=18 6-( )=68-( )=1( )-2=10( )-3=2 15+( )=1511+( )=13( )+0=5( )-3=5 15+( )=1813-( )=12( )+5=15( )+2=12 13+( )=1614-( )=10( )-1=17( )-2=13 10-( )=15-( )=1( )+3=17( )+8=174-( )=415-( )=12( )-2=3( )-4=711-( )=510+( )=11( )-0=8( )+1=12 11-( )=510-( )=8( )+0=17( )+0=10 14+( )=189-( )=5( )-5=8( )-6=52+( )=219-( )=19( )-5=9( )+1=10 20以内带括号加减混合9+( )=1113+( )=16( )-3=3( )-5=4 5+( )=59-( )=8( )+3=8( )-2=1 9-( )=914-( )=13( )+2=17( )-4=4 5+( )=95+( )=8( )-2=11( )-3=1 5+( )=810-( )=10( )+3=15( )+0=6 9-( )=715+( )=18( )+4=19( )-1=4 6+( )=911-( )=3( )+2=15( )-2=11 12+( )=178-( )=7( )-5=3( )+0=10 7+( )=99+( )=10( )-7=1( )+1=18 12+( )=1417-( )=17( )-0=17( )-1=14 10-( )=113+( )=17( )+1=9( )-4=9 10-( )=69-( )=2( )+2=10( )-0=9 9-( )=214+( )=14( )+5=11( )-0=11 11+( )=184+( )=4( )+0=5( )-4=2 7-( )=59-( )=7( )+4=14( )+0=6 12+( )=1613-( )=12( )+5=18( )+4=115+( )=510+( )=12( )+5=16( )+3=1116-( )=1610+( )=18( )-1=6( )+2=16 5+( )=51-( )=1( )+0=2( )-1=6 16+( )=1910+( )=18( )+0=18( )-1=4 9+( )=1110+( )=14( )-0=12( )+2=1512-( )=84-( )=3( )+1=7( )-0=13 20以内带括号加减混合13-( )=88-( )=8( )-3=8( )-3=1 11+( )=1710+( )=18( )-0=4( )-5=1 7+( )=713+( )=17( )+3=13( )-1=10 10+( )=1115+( )=19( )-3=1( )-0=9 12-( )=75-( )=3( )+0=9( )-9=1 5+( )=77+( )=7( )+3=15( )+0=9 12-( )=614-( )=14( )-3=3( )-0=11 15+( )=1613+( )=19( )-0=14( )+1=5 14+( )=1611-( )=6( )-1=6( )+3=12 8-( )=716-( )=16( )+1=14( )+1=10 9+( )=149-( )=2( )-5=1( )+8=19 13-( )=124-( )=2( )+1=9( )+6=15 15+( )=1612-( )=6( )-4=10( )-0=16 8+( )=1213-( )=8( )+6=15( )-4=11 15-( )=147-( )=4( )-1=1( )-5=613-( )=714-( )=13( )+4=11( )-4=58+( )=99-( )=1( )+3=12( )-3=3 10+( )=198+( )=13( )+4=15( )+6=16 10-( )=63-( )=2( )-0=9( )-4=8 11+( )=1312+( )=16( )+1=17( )+8=19 6-( )=210-( )=10( )-2=14( )+1=1311+( )=159+( )=11( )-3=1( )-0=12 20以内带括号加减混合5+( )=89+( )=9( )-4=6( )+3=14 8-( )=54+( )=7( )-4=5( )-6=2 5+( )=79-( )=5( )-2=3( )-0=13 7+( )=109+( )=15( )-2=14( )+3=10 12-( )=99+( )=15( )+9=19( )+6=15 9-( )=412+( )=19( )+0=16( )-5=9 1-( )=15+( )=6( )+3=7( )-0=14 11-( )=714-( )=10( )+0=14( )-3=9 8+( )=109+( )=10( )+2=14( )+5=19 14+( )=195-( )=3( )+4=14( )+4=18 18+( )=1813-( )=9( )-0=14( )-5=2 13-( )=89-( )=4( )-1=17( )+4=12 9+( )=911-( )=5( )-0=17( )-6=4 6+( )=104-( )=1( )+2=19( )+3=103-( )=17-( )=4( )-4=10( )-5=612-( )=128+( )=11( )-7=5( )-1=1 6+( )=910+( )=19( )-4=6( )+5=14 9+( )=138-( )=8( )+1=16( )+2=9 10+( )=188+( )=10( )+7=16( )-4=5 7-( )=414+( )=17( )-9=1( )+1=6 2+( )=210-( )=4( )+3=17( )-4=314+( )=169-( )=8( )-6=7( )+6=16 20以内带括号加减混合11-( )=317+( )=18( )-3=4( )+2=10 9+( )=158+( )=10( )-0=19( )+0=5 13-( )=1112+( )=17( )+2=13( )+0=5 15+( )=154-( )=4( )+3=15( )-3=1 12+( )=1610+( )=13( )+6=16( )-2=13 14-( )=1011-( )=6( )+1=6( )+3=14 8+( )=139+( )=17( )+2=8( )+0=5 7+( )=77+( )=7( )-3=10( )-3=10 17-( )=1618+( )=18( )-6=5( )-4=10 10+( )=1712-( )=8( )-0=6( )+5=13 16-( )=1610-( )=6( )-0=8( )-1=7 3+( )=59+( )=15( )+3=9( )+2=13 9+( )=179+( )=12( )+3=18( )-4=39-( )=59-( )=5( )+0=2( )-5=112+( )=138+( )=10( )+2=17( )-5=6 9-( )=99+( )=10( )-1=5( )-2=8 9+( )=1610+( )=17( )+2=13( )-1=7 6-( )=69-( )=4( )-4=2( )-6=4 12+( )=1910-( )=3( )-7=4( )-5=7 15-( )=1311-( )=6( )+3=17( )-5=5 16+( )=174-( )=2( )-9=1( )+0=1110+( )=176+( )=9( )-1=6( )+5=14 20以内带括号加减混合11+( )=1314-( )=9( )-0=14( )+6=19 11+( )=1914+( )=17( )-0=4( )+3=17 11+( )=1512+( )=17( )-2=14( )+3=13 15+( )=199+( )=10( )+4=9( )+0=6 15+( )=1515+( )=19( )-3=7( )+2=7 13-( )=87+( )=8( )-3=12( )-4=4 15-( )=139-( )=9( )-5=3( )-7=5 11+( )=119+( )=17( )-3=13( )+4=12 12-( )=711-( )=5( )-1=5( )-8=3 9+( )=169-( )=7( )+9=19( )-0=18 13+( )=1918-( )=18( )+5=11( )+4=18 11-( )=1114-( )=12( )+5=19( )-2=132+( )=38-( )=5( )+4=15( )+2=114+( )=411+( )=14( )-4=1( )+1=11 11+( )=168+( )=9( )-0=4( )+6=14 2+( )=25-( )=4( )+0=6( )-5=9 12-( )=717-( )=15( )+2=10( )+1=7 8-( )=418-( )=17( )-1=13( )-1=1 11-( )=516-( )=15( )+1=8( )-3=9 5+( )=715-( )=14( )-8=1( )-1=12 3+( )=54+( )=5( )-1=12( )-4=714+( )=197+( )=13( )+1=7( )-1=12 20以内带括号加减混合11-( )=59-( )=9( )+3=17( )+3=7 10-( )=811-( )=8( )+5=17( )-1=11 8+( )=1312+( )=17( )+2=6( )-2=2 11+( )=1215+( )=18( )-2=12( )+1=5 18+( )=1910+( )=19( )+4=17( )-4=2 4+( )=612+( )=16( )-3=13( )+0=4 13-( )=1111-( )=4( )-0=16( )-1=2 4-( )=111+( )=11( )+0=19( )-3=10 8+( )=109-( )=3( )-2=8( )-2=12 6-( )=29+( )=13( )-8=2( )-0=12 15-( )=143-( )=3( )+0=7( )-0=911+( )=1810+( )=11( )+0=11( )+2=913+( )=183+( )=5( )+2=8( )+5=11 7+( )=711+( )=18( )-0=4( )-2=15 12+( )=1818-( )=17( )+0=11( )-2=1 3-( )=314-( )=14( )+2=17( )-2=3 12+( )=1413+( )=17( )+1=7( )-4=11 4-( )=312-( )=6( )-5=5( )+1=11 14-( )=139-( )=9( )+5=16( )+5=11 8-( )=613+( )=13( )-2=4( )-1=7 12+( )=155-( )=3( )-0=11( )+2=1914-( )=1013-( )=8( )-3=8( )-0=18 20以内带括号加减混合8-( )=69-( )=9( )-0=14( )+1=12 11-( )=116+( )=11( )-7=3( )-1=3 8-( )=515+( )=19( )+5=18( )+4=15 11-( )=89+( )=16( )-3=10( )-3=13 7-( )=28-( )=3( )-2=3( )+2=11 9-( )=912-( )=12( )-6=7( )-9=1 2+( )=28+( )=8( )-1=3( )+1=13 9+( )=1512+( )=13( )-3=8( )+3=16 6-( )=612-( )=9( )-3=10( )-5=6 17-( )=1613-( )=10( )+3=18( )-2=15。

20以内三连加减口算练习题带括号填空(90)

20以内三连加减口算练习题带括号填空(90)
20以内三连加减口算练习题填空型 时间: 错误率:
( )-17+7=10 1+16-( )=15
19-10-( )=5 7+1+( )=9
( )+11-9=19 ( )+19-7=16
16+( )+1=19 16+7-( )=10
8+( )-5=19 19-15+( )=20
( )+10-3=16 10-5+( )=14
20-14+( )=10 8+( )+5=18
5+18-( )=10 ( )-1-3=4
20-( )+6=9 ( )-7+10=17
2+14+( )=17 5+( )+6=14
( )+6-1=19 3+4+( )=14
5-3+( )=6 3+8-( )=7
3+( )+13=20 ( )+4+1=12
20-( )-4=3 10-8+( )=17
11+( )-9=4 7+3+( )=12
17+( )-13=12 ( )+3-7=11
11-( )+10=13 13+( )-20=6
4+( )-12=3 12-7+( )=12
15+4-( )=6 ( )+17-19=3
5+4+( )=12 ( )+4-13=10
16-2-( )=6 3+( )-2=20
( )-1-8=10 ( )+7+4=18
11-( )+18=18 17+1-( )=0
6-( )+1=4 2+4+( )=19
16-( )-8=0 13+( )-7=11
2+20-( )=17 16-( )-4=5
( )-6+1=10 17-1-( )=10
( )+12+1=16 3+5+( )=20
6+4+( )=13 13+14-( )=17
15+( )-19=11 18+9-( )=13

一年级20以内加减法带括号口算题

一年级20以内加减法带括号口算题

一年级20以内加减法带括号口算题一、口算题。

1. 3+(5 - 2)=- 解析:先算括号里的5 - 2 = 3,再算3+3 = 6。

2. 4+(6 - 3)=- 解析:先算括号里的6 - 3 = 3,再算4 + 3=7。

3. 2+(9 - 5)=- 解析:先算括号里的9 - 5 = 4,再算2+4 = 6。

4. 5+(7 - 4)=- 解析:先算括号里的7 - 4 = 3,再算5+3 = 8。

5. 1+(8 - 3)=- 解析:先算括号里的8 - 3 = 5,再算1+5 = 6。

6. 6+(4 - 2)=- 解析:先算括号里的4 - 2 = 2,再算6+2 = 8。

7. 3+(10 - 6)=- 解析:先算括号里的10 - 6 = 4,再算3+4 = 7。

8. 7+(5 - 3)=- 解析:先算括号里的5 - 3 = 2,再算7+2 = 9。

9. 4+(8 - 5)=10. 2+(11 - 7)=- 解析:先算括号里的11 - 7 = 4,再算2+4 = 6。

11. 5+(9 - 6)=- 解析:先算括号里的9 - 6 = 3,再算5+3 = 8。

12. 3+(12 - 8)=- 解析:先算括号里的12 - 8 = 4,再算3+4 = 7。

13. 6+(7 - 4)=- 解析:先算括号里的7 - 4 = 3,再算6+3 = 9。

14. 4+(10 - 7)=- 解析:先算括号里的10 - 7 = 3,再算4+3 = 7。

15. 2+(13 - 9)=- 解析:先算括号里的13 - 9 = 4,再算2+4 = 6。

16. 5+(11 - 8)=- 解析:先算括号里的11 - 8 = 3,再算5+3 = 8。

17. 3+(14 - 10)=- 解析:先算括号里的14 - 10 = 4,再算3+4 = 7。

18. 7+(9 - 6)=- 解析:先算括号里的9 - 6 = 3,再算7+3 = 10。

19. 4+(12 - 9)=20. 6+(10 - 8)=- 解析:先算括号里的10 - 8 = 2,再算6+2 = 8。

20以内减法口算练习题带括号填空(50)

20以内减法口算练习题带括号填空(50)

11-( )=7 19-( )=12 () -6=2 ()- 18=1 18-( )=10 () -5=5 19-( )=2 ()- 1=18 20-( )=6 ()- 13=2 15-( )=7 ()- 4=10 () -6=1 12-( )=10 () -7=9 ()- 4=14 20-( )=14 13-( )=4 ()- 2=14 16-( )=6 () -5=1 8-( )=5 () -8=6 10-( )=8 ()- 10=9 15-( )=3 17-( )=15 13-( )=9 ()- 8=11 ()- 16=2 12-( )二9 () -3=2 20-( )二3 3-( )=1 20-( )二7 () -5=0 20-( )=2 ()- 16=0 13-( )=8 () -4二8 16-( )二3 12-( )二5 ()- 1=12 5-( )二3 17-( )=13 17-( )二9 ()- 12=8 () -7=8 11-( )=1 () -3=3 14-( )=8 19-( )二4 20-( )=11 7-( )=0 20-( )=10 () -9=3 18-( )二4() -6=9 14-( )=2 9-( )=2 () -5=3 11-( )=0 19-( )=15 14-( )=0 4-( )=0 () -2=2 ()- 19=0 19-( )=7 16-( )=8 12-( )=1 11-( )=3 8-( )=0 18-( )=6 ()- 6=12 16-( )=2 17-( )=1 () -2=4 7-( )=6 13-( )=7 12-( )=2 11-( )=1020-( )=0 18-( )=17 6-( )=5 () -9=6 18-( )=13 () -9=0 () -4二5 16-( )=1 ()- 5=14 17-( )二5 12-( )二4 ()- 5=12 ()- 3=16 () -4=6 16-( )=15 ()- 1=16 11-( )二5 () -3二8 12-( )=6 14-( )=1 17-( )=3 20-( )二9 ()- 12=1 11-( )二9 5-( )=4 15-( )=13 14-( )=47-( )二5 20-( )=13 20-( )=12 13-( )=6 16-( )=11 ()- 15=216-( )=12 ()- 10=5 10-( )二4 ()- 10=8 () -8=2 15-( )=4 16-( )=5 () -7=7 20-( )=17 12-( )=0 () -3=7 9-( )=1 ()- 12=4 14-( )=9 ()- 2=12 () -5=6 ()- 2=18 ()- 1=14 19-( )=3 ()- 7=10 () -7=4 ()- 3=14 () -1=8 14-( )=13 20-( )=16 10-( )=1 ()- 11=7 () -3=1 ()- 7=11 ()- 14=5 12-( )=11 ()- 6=11 18-( )二9 () -2=6 ()- 6=13 1-( )=0 19-( )=8 ()- 6=10 ()- 17=1 ()- 14=1 18-( )=16 13-( )=11 () -7=3()- 3二13 17-( )二7 13-( )二3 2-( )=0 () -9=8 20-( )=4 ()- 5=15 ()- 11=6 ()- 13=6 () -6=0 () -1=2 () -6二3 9-( )=6 ()- 1=197-( )=3 19-( )=10 20-( )=1 15-( )=12 () -9=710-( )=0 () -4=213-( )=5 12-( )=7 10-( )=9 ()■-13=4 () -5=4 3-( )=0 () -4二4 ()- 11=3 14-( )=5 19-( )=17 () -2=7 13-( )=2 ()■-13=5 () -1=3 7-( )=4 () -4=1 15-( )=0 () -9=2 13-( )=10 2-( )=1 17-( )=0 14-( )=11 ()- 15=5 7-( )=2 ()■3二15 ()- 15=3 ()- 5=10 ()■-18=0 ()- 13=0 8-( )=1 ()- 4=11 8-( )=7 () -4=719-( )=128-( )=2 ()- 18≡118-( )=10 () -5二519-( )二2 19-( )=18 20-( )二6 ()- 13=2 () -8=7 ()- 4=10() -6=1 ()- 2=10 16-( )二918-( )=14 () -6=14 13-( )二46-( )=14 ()- 10=6 () -5=1() -3=5 () -8=6 10-( )=8 19-( )=9 15-( )=3 ()- 2=15 () -4=9 ()- 8=11 ()- 16=2 12-( )=9 5-( )=2 ()- 17=3 3-( )=1 ()- 13=7 5-( )=0 ()- 18=2 ()- 16=0 () -5=8 12-( )=8 16-( )=3 () -7=5 ()- 1=12 () -2=3 17-( )=13 () -8=9 20-( )=8 () -7=8 11-( )=1 6-( )二3 14-( )二819-( )二4 ()- 9=11 () -7=0 )-10=10 12-( )二3 18-( )二4 :() -6=9 ()- 12=2 () -7=2 () -5二3 ()- 11=0 19-( )=15 ()- 14=0 () -4二0 4-( )=2 19-( )=0 ()- 12=7 16-( )=8 12-( )=1 11-( )二3 8-( )=0 18-( )=6 18-( )=12 ()- 14=217-( )=1 6-( )=4 7-( )=6() -6=7 ()- 10=2 11-( )=10 20-( )=0 ()- 1=17 6-( )二5 () -9=6 18-( )=13 () -9=0 9-( )=5 ()- 15=1 19-( )=14 17-( )=5 () -8=4 17-( )=12 19-( )=16 10-( )二6 ()- 1=15 17-( )=16 () -6=5 11-( )=8 () -6=6 ()- 13=1 ()- 14=3 20-( )=9 13-( )=1 () -2=9 5-( )二4 15-( )=13 14-( )二47-( )二5 20-( )=13 20-( )=12 13-( )=6 16-( )=11 ()- 15=2 ()- 4=12 ()- 10=5 10-( )二4 ()- 10≡810-( )二2 ()- 11=4 16-( )二5 () -7=7 ()- 3=17 12-( )=0 () -3=7 9-( )=1 16-( )二4 () -5=9 14-( )二12 () -5=6 20-( )=18 15-( )=14()- 16=3 ()- 7=10 11-( )=4 ()- 3=14 () -1=8 14-( )=13 ()- 4=16 10-( )=1 18-( )=7 4-( )=1 18-( )=11 19-( )=5 ()- 1=11 ()- 6=11 () -9=9 8-( )=6 ()- 6=13 1-( )=0 ()- 11=8 ()- 6=10 ()- 17=1 ()- 14=1 ()- 2=16 13-( )=11 () -7=3 16-( )=13 ()- 10=7 ()- 10=3 () -2=0 () -9=8 ()- 16=4 20-( )=15 ()■11=619-( )二6 6-( )=0 3-( )=2 9-( )=3 () -3=6 20-( )=19 7-( )二3 ()- 9=10 ()- 19=1 ()- 3=12 () -9=7 10-( )=0 () -4=2 13-( )二5 12-( )二7 () -1=9 ()- 13=4 9-( )=4 () -3=0 () -4=4()- 11=3 14-( )=5 19-( )=17 9-( )=7()- 11=2 ()- 13=5 4-( )=3 () -3=4 () -4=1 ()- 15=0 () -9=2 13-( )=10 () -1=1 17-( )=0 ()- 3=11 ()- 15=57-( )=2 18-( )=15 18-( )=3 15-( )=10 ()- 18=0 13-( )=0 () -7=1 15-( )=11 8-( )=7 11-( )=7 ()- 7=12 8-( )=2 19-( )=1 18-( )=10 10-( )=5 ()- 17=2 19-( )=18 20-( )=6 15-( )二2 () -8二7 ()- 4=10 () -6=1 ()- 2=10 16-( )=9 18-( )=14 20-( )=14 () -9=4 16-( )=14 ()- 10=6 6-( )=1 () -3=5 14-( )二6 10-( )二8 ()- 10=9 ()- 12=3 17-( )=15 () -4=9 ()- 8=11 18-( )=2 12-( )二9 5-( )二2 ()- 17=3 3-( )=1 20-( )二7() -5=0()- 18=2 ()- 16=0 13-( )=8 () -4二8 ()- 13=3 12-( )=5 13-( )=12 () -2=3 17-( )=13 17-( )=9 20-( )=8 15-( )=8 11-( )=1 () -3=3 () -6=8 ()- 15=4 20-( )=11 () -7=0 20-( )=10 () -9=3 18-( )=4 15-( )=9 ()- 12=2 9-( )=2 8-( )=3 11-( )=0 ()- 4=15 14-( )=0 4-( )=0 () -2=2 19-( )=0 19-( )二7() -8=8 ()- 11=1 () -8二3 8-( )=0 ()- 12=6 18-( )=12 16-( )二2 ()- 16=1 () -2=4 7-( )=6 () -6二7 12-( )二2 11-( )=10 ()- 20=0 18-( )=17 () -1=5 () -9=6 18-( )=13 () -9=0 9-( )二5 ()- 15=1 ()- 5二14 17-( )=5 () -8=4 17-( )=1219-( )=16 10-( )二6 16-( )=15 17-( )=16 11-( )二5 11-( )=8 12-( )=6 14-( )=1 ()- 14=3 ()- 11=9 ()- 12=1 () -2=9 5-( )=4 ()- 2=13 14-( )=4 () -2=5 20-( )=13 20-( )=12 13-( )=6 ()- 5=11 17-( )=2 16-( )=12 ()-10=5 () -6=4 ()- 10=8 10-( )=215-( )=4 16-( )=5 () -7=7 20-( )=17 12-( )=0 () -3=7 9-( )=1 16-( )二4 () -5=9 ()- 2=12 11-( )=6 20-( )=18 ()- 1=14 ()- 16=3 17-( )=10 11-( )二4 17-( )=14 () -1=8 ()- 1=13 20-( )=16 () -9=1 18-( )二7 () -3=1 ()- 7=11 19-( )=5 12-( )=11 ()- 6=11 18-( )二9 () -2=6 ()- 6=13 () -1=0()- 11=8 16-( )=10 ()- 17=1 ()- 14=1 18-( )=16 13-( )=11 () -7=3 16-( )=13 17-( )=7 ()- 10=3 2-( )=0 17-( )=8 20-( )=4 20-( )=15 ()- 11=6 19-( )=6 () -6=0 3-( )=2 9-( )=3 () -3=6 20-( )=19 7-( )=3 19-( )=10 20-( )=1 15-( )=12 () -9=7 ()- 10=0 6-( )=2 13-( )=5 () -5=7 () -1=9 ()- 13=4 9-( )=4 () -3=0 8-( )=4 ()- 11=3 () -9=5 19-( )=17 9-( )=7 13-( )二2 18-( )二5 () -1=3 () -3=4 () -4=1 15-( )=0 () -9=213-( )=10 2-( )=1 ()- 17=014-( )=11 20-( )=5 7-( )二2 ()- 3=15 18-( )二3 ()- 5=10 18-( )=0 ()- 13=0() -7=1 15-( )=11 8-( )=7 () -4=7 ()- 7=12 8-( )=2 19-( )=1 ()■-8=10 10-( )=519-( )=2 19-( )=18 20-( )=6 ()- 13=2 15-( )=7 14-( )=10 7-( )=1 ()- 2=10 16-( )=9 ()- 4=14 20-( )=14 13-( )二4 ()- 2=14 16-( )=6 6-( )=1 8-( )=5 () -8=6 10-( )=8 19-( )=9 ()■-12=3 ()- 2=15 13-( )二9 ()•-8=11 18-( )二2 12-( )二9 5-( )二2 20-( )二3 3-( )=1 20-( )=7 () -5=0 ()- 18=2 ()■-16=0 13-( )二8 () -4二8 ()- 13=3 12-( )二5 13-( )=12 5-( )二3 17-( )=13 () -8=9 20-( )二8 15-( )=8 ()- IO=I () -3二3 () -6=8 19-( )=4 20-( )=11 () -7=0()-:10=10 () -9=3 18-( )=4 () -6=9 14-( )=2 9-( )=2 8-( )=3 ()- 11=0 ()- 4=15 ()- 14=0 4-( )=0 () -2=2 ()- 19=0 ()- 12=7 16-( )=8 12-( )=1 11-( )=3 () -8=0 18-( )=6 ()- 6=12 ()- 14=2 17-( )=1 () -2=4 () -1=6 () -6=7 ()- 10=2 11-( )=10 ()- 20=0 ()- 1=17 () -1=5 () -9=6 18-( )=13 9-( )=0 9-( )二5 ()- 15=1 ()- 5二14 ()- 12=5 () -8二4 17-( )=12 19-( )=16 () -4=6 16-( )=15 ()- 1=16 11-( )二5 11-( )二8 () -6=6 14-( )=1 ()- 14=3 20-( )=9 ()- 12=1 11-( )=95-( )二4 15-( )=13 14-( )二4 () -2=5 20-( )=13 20-( )=1213-( )=6 ()- 5=11 ()- 15=2 .6-( )=12 ()- 10=5 () -6=4 18-( )=8 () -8=2 ()- 11=4 ()- 11=5 14-( )=7 ()- 3=17 ()- 12=0 10-( )=7 () -8=1 ()- 12=4 14-( )=9 ()- 2=12 11-( )=6 ()- 2=18 ()- 1=14 ()- 16=3 ()- 7=10 () -7=4 ()- 3=14 9-( )=8 14-( )=13 ()- 4=16 () -9=1 ()- 11=7 () -3=1 ()- 7=11 19-( )二5 ()- 1=11 ()- 6=11 () -9二9 8-( )=6 19-( )=13 () -1=0 ()- 11=8 ()- 6=10 ()- 17=1 ()- 14=1 18-( )=16 13-( )=11 () -7二316-( )=13 17-( )二7 13-( )=3 () -2=0 17-( )=8 20-( )二4 ()- 5二15 17-( )二6 19-( )=6 6-( )=0 3-( )=2() -6=3 () -3=6 ()- 1=19 () -4=3 19-( )=10 ()- 19=1 ()- 3=12 16-( )=7 ()- 10=0 6-( )=2 () -8=5 () -5=7 () -1=9 ()- 13=4 () -5=4 () -3=0 () -4=4 ()- 11=3 14-( )=5 ()- 2=17 9-( )=7 ()- 11=2 18-( )=5 4-( )=3 () -3=4 () -4=1 ()- 15=0 11-( )=2 ()- 3=10 2-( )=1 17-( )=0 14-( )=11 ()- 15=5 7-( )=2 ()- 3=15 ()- 15=3 15-( )=10 18-( )=0 ()- 13=0 8-( )=1 15-( )=11 8-( )二7 11-( )二7 19-( )二12 () -6=2 ()- 18=1 ()- 8=10 10-( )二5 19-( )=2 ()- 1=18 ()- 14=6 ()- 13=2 () -8二7 ()- 4=10 () -6=1 ()- 2=10 16-( )二918-( )=14 20-( )=14 13-( )=4 16-( )=14 ()- 10=6 6-( )=1 8-( )=5 14-( )=6 () -2=8 ()- 10=9 15-( )=3 ()- 2=15 13-( )=9 19-( )=11 18-( )二2 () -3=9 () -3=2 20-( )=3 3-( )=1 20-( )=7 () -5=0 ()- 18=2 16-( )=0 () -5=8 () -4二8 16-( )=3 12-( )二5 13-( )=12 () -2=3 ()- 4=13 () -8二9 ()- 12=8 15-( )二8 ()- IO=I 6-( )二3 14-( )二8 ()- 15=4 20-( )=11 7-( )=0 20-( )=10 () -9=3 ()- 14=4 () -6=9 14-( )二2 9-( )=2 8-( )二3 ()- 11=0 ()- 4=15 ()- 14=0 4-( )=0 () -2=219-( )=0 19-()二716-( )=8 ()- 11=1 () -8=3 () -8=0()- 12=6 18-( )=12 16-( )二2 17-( )=1 6-( )=4 () -1=6 13-( )=7 ()- 10=2 11-( )=10 ()- 20=0 18-( )=17 () -1=5 () -9=6 18-( )=13 () -9=0 9-( )=5 16-( )=1 19-( )=14 17-( )=5 () -8二4 ()- 5=12 19-( )=16 10-( )=6 ()■-1=15 ()- 1=16 () -6=5 11-( )=8 12-( )=6 14-( )=1 17-( )=3 ()- 11=9 ()- 12=1 11-( )二9 5-( )二4 15-( )=13 ()- 10=4 7-( )=5 20-( )=13 ()- 8=12 13-( )二6 ()- 5=11 ()- 15=2 16-( )=12 15-( )二5 () -6=4 ()- 10=8 () -8=215-( )二4 ()- 11=5 14-( )=7 ()- 3=17 ()- 12=0 10-( )二7() -8=1 16-( )=4 () -5=9 14-( )=1211-( )=6 ()- 2=18 15-( )=14 19-( )=3 17-( )=10 () -7=4 ()- 3=14 () -1=8 ()- 1=13 20-( )=16 () -9=1 18-( )=7 () -3=1 18-( )=11 19-( )=5 ()- 1=11 17-( )=11 18-( )=9 () -2=6 ()- 6=13 1-( )=0 19-( )=8 16-( )=10 18-( )=1 15-( )=1 18-( )=16 13-( )=11 10-( )=3 ()- 3=13 17-( )=7 ()- 10=3 () -2=0 17-( )二8 20-( )二4 ()- 5二15 17-( )二6 ()- 13=6 () -6=0 () -1=2 () -6二3 () -3=6 ()- 1=19 () -4二3 ()- 9=10 ()- 19=115-( )=12 16-( )二710-( )=0 6-( )=2 () -8=5 12-( )=7() -1=9 ()- 13=4 9-( )二43-( )=0 () -4二4 14-( )二314-( )=5 ()- 2=17 9-( )=713-( )=2 18-( )=5 4-( )=3 7-( )=4 () -4=1 ()- 15=0 () -9=2 ()- 3=10 () -1=1 ()- 17=0 14-( )=11 ()- 15=5 () -5=2 ()- 3=15 18-( )=3 ()- 5=10 18-( )=0 13-( )=0 () -7=1 15-( )=11 8-( )=7 11-( )=7 ()- 7=12 () -6=2 ()- 18=1 ()- 8=10 10-( )=519-( )二2 19-( )二18 20-( )二6 15-( )二2 () -8二7 14-( )=107-( )=1 12-( )=10 16-( )=9 ()- 4=14 ()- 6=14 () -9二4 ()- 2=14 ()- 10≡6()-5=1 () -3二5 () -8=6 () -2=8 19-( )=9 ()- 12=3 ()- 2=15 () -4二9 ()- 8=11 18-( )二2 () -3二9 () -3=2 ()- 17=33-( )=1 ()- 13=7 () -5=0 20-( )=2 ()- 16=0 13-( )=8 () -4二8 16-( )=3 12-( )二5 13-( )=12 () -2=3 17-( )=13 17-( )=9 ()- 12=8 () -7=8 ()- 10=1 () -3=3 () -6=8 ()- 15=4 ()- 9=11 () -7=0 20-( )=10 () -9=3 18-( )=4 () -6=9 14-( )=2 () -7=2 () -5=3 11-( )=0 ()- 4=15 ()- 14=0 () -4=0 () -2=2 19-( )=0 19-()=7() -8=8 ()- 11=1 () -8=3 8-( )=0 ()- 12=6 18-( )=12 16-( )二2 17-( )=1 6-( )二4 () -1=6 () -6二7 ()- 10=2 ()- 1=10 20-( )=0 ()- 1=17 () -1=5 () -9二6 18-( )=13 9-( )=0 9-( )二5 16-( )=1 ()- 5=1420以内减法口算练习题填空型时间:错误率:()- 12=5 () -8二4 ()- 5=1219-( )=16 10-( )二6 16-( )=15 17-( )=16 11-( )二5 11-( )二8 12-( )=6 14-( )=1 ()- 14=3 ()- 11=9 13-( )=1 11-( )=9 () -1=4 ()- 2=13 ()- 10=4 7-( )=5 ()- 7=13 20-( )=12 () -7=6 16-( )=11 ()- 15=2 16-( )=12 15-( )二5 10-( )二4 18-( )=8 10-( )=2 ()- 11=4 16-( )二5 () -7=7 ()- 3=17 12-( )=0 10-( )=7() -8=1 16-( )=4 () -5=9 ()- 2=12 () -5=6 ()- 2=18 15-( )=14 ()- 16=3 17-( )=10 () -7二4 17-( )=14 () -1=8 ()- 1=13 20-( )=16 () -9=1 ()- 11=7 () -3=1 ()- 7=11 19-( ):5 12-( )=11 17-( )=11 () -9二9() -2=6 19-( )=13 () -1=0 19-( )=8 ()- 6=10 ()- 17=1 ()- 14=1 ()- 2=16 13-( )=11 () -7=3 ()- 3=13 ()- 10=7 ()- 10=3 2-( )=0 17-( )=8 20-( )=4 20-( )=15 ()- 11=6 ()- 13=6 6-( )=0 () -1=2 9-( )=3 () -3=6 20-( )=19 () -4=3 19-( )=10 20-( )=1 ()- 3=12 () -9=7 10-( )=06-( )=2 13-( )二5 12-( )二7 () -1=9 17-( )二4 () -5二4() -3=0 8-( )=4 ()- 11=3() -9二5 ()- 2=17 9-( )=713-( )二2 18-( )二5 4-( )二3 7-( )二4 5-( )=1 ()- 15=0 11-( )=2 ()- 3=10 () -1=1 ()- 17=0 14-( )=11 20-( )二5 7-( )=2 18-( )=15 18-( )二315-( )=10 ()- 18=0 ()- 13=0 8-( )=1 15-( )=11 () -1=7 11-( )=7 ()- 7=12 8-( )=2 19-( )=1 18-( )=10 10-( )=5 19-( )=2 19-( )=18 20-( )=6 ()- 13=2 () -8=7 ()- 4=10 7-( )=1 ()- 2=10 16-( )=9 ()- 4=14 ()- 6=14 () -9二4 ()- 2=14 16-( )=6 6-( )=18-( )=5 14-( )=6 10-( )=8 ()- 10=9 15-( )二3 ()- 2=1513-( )二9 19-( )=11 ()- 16=2() -3=9 5-( )=2 20-( )=3() -2=1 20-( )=7 5-( )=0()- 18=2 16-( )=0 13-( )二812-( )二8 ()- 13=3 () -7二5 13-( )=12 () -2=3 17-( )=13 17-( )二9 20-( )二8 () -7二8 ()- 10=1 () -3二3 14-( )二8()■-15=4 ()- 9=11 7-( )=0 ()- 10=10 12-( )=3 ()- 14=4 15-( )=9 14-( )=2 () -7=2 8-( )=3 11-( )=0 ()- 4=15 ()■-14=0 () -4=0 () -2=2 19-( )=0 19-( )=7 () -8二8 12-( )=1 () -8=3 () -8=0 18-( )=6 18-( )=12 ()- 14=2 17-( )=1 6-( )=4 () -1=6 13-( )=7 12-( )=2 11-( )=10 ()■-20=0 18-( )=17 () -1=5 15-( )二6 ()- 5=13 () -9=0 9-( )=5 ()- 15=1 ()- 5=14 17-( )二5 () -8二4 ()- 5二12 ()■-3=16 10-( )二6 16-( )二15 17-( )=16 11-( )二5 () -3二8 () -6=6 ()- 13=1 17-( )=3 ()■-11=9 13-( )=1 11-( )二9 5-( )二4 15-( )=13 ()- 10=47-( )=5 20-( )=13 20-( )=12 () -7=6 ()- 5=11 ()- 15=2 16-( )=12 ()- 10=5 10-( )二4 18-( )=8 () -8=2 ()- 11=4 ()- 11=5 () -7=7 20-( )=17 ()- 12=0 10-( )=7 () -8=1 ()- 12=4 14-( )=9 14-( )=12 11-( )=6 ()- 2=18 15-( )=14 19-( )=3 ()- 7=10 () -7=4 ()- 3=14 9-( )=8 ()- 1=13 ()- 4=16 () -9=1 18-( )二7 4-( )=1 18-( )=11 ()- 14=5 12-( )=11 ()- 6=11 18-( )=9 () -2=6 19-( )=13 () -1=0 ()- I1=8 16-( )=10 ()- 17=1 ()- 14=1 ()- 2=16 ()- 2=1110-( )=3 16-( )=13 17-( )=7 13-( )二3 () -2=0 () -9=8 ()- 16=4 ()- 5二15 ()- 11=6()- 13=6 () -6=0 () -1=2 () -6=3 () -3=6 20-( )=19 7-( )=3 ()- 9=10 20-( )=1 ()- 3=12 16-( )=7 ()- 10=0 () -4=2() -8=5 () -5=710-( )=9 17-( )=4 9-( )=4 () -3=0 () -4二4 14-( )=3() -9=5 19-( )=17 9-( )=7()- 11=2 ()- 13=5 () -1=37-( )=4 () -4=1 15-( )=011-( )二2 ()- 3=10 2-( )=117-( )=0 ()- 3=11 20-( )二57-( )=2 18-( )=15 18-( )=3()- 5=10 18-( )=0 13-( )=08-( )=1 ()- 4=11 8-( )=711-( )二7 19-( )=12() -6=2 ()- 18=1 ()- 8=10 () -5=5 ()- 17=219-( )=18 20-( )二6 ()- 13=2() -8=7()- 4=10() -6=1 ()- 2=10 16-( )=9()- 4=14 20-( )=14 ()-9=416-( )=14 16-( )二6 ()-5=18-( )=5 14-( )=6 10-( )=8 19-( )=9 15-( )=3 17-( )=15() -4=9 19-( )=11 18-( )=2() -3=9 5-( )=2 20-( )=3 () -2=1 ()- 13=7 ()-5=020-( )=2 16-( )=0 ()-5=812-( )=8 ()- 13=3 12-( )=513-( )=12 5-( )二3 17-( )=13 () -8二9 ()- 12=8 ()-7=811-( )=1 6-( )=3 ()-6=8()- 15=4 ()- 9=11 7-( )=0 20-( )=10 12-( )二3 18-( )=415-( )二9 14-( )二2 9-( )=2 8-( )=3 11-( )=0 ()-4=1514-( )=0 () -4二0 4-( )=2 ()- 19=0 19-( )=7()-8=812-( )=1 () -8=3 8-( )=0 18-( )=6 18-( )=12 ()- 14=2 ()- 16=1 () -2=4 7-( )=6 13-( )=7 ()- 10=2 11-( )=10 20-( )=0 ()- 1=17 () -1=5 () -9=6 18-( )=13 () -9=0 () -4=5 ()- 15=1 19-( )=14 17-( )=5 () -8二4 17-( )=12 ()- 3=16 () -4=6 ()- 1=15 17-( )=16 () -6=5 11-( )=8 12-( )=6 ()- 13=1 ()- 14=3 ()- 11=9 ()- 12=1 () -2=9 5-( )=4 15-( )=13 ()- 10=4 () -2=5 20-( )=13 ()- 8=12 13-( )=6 ()- 5=11 ()- 15=2 16-( )=12 ()- 10=5 10-( )二4 ()- 10=8 () -8=2 15-( )=4 ()- 11=5 14-( )二7()- 3=17 ()- 12=0 () -3=7 9-( )=1()-12=4 () -5=9 14-( )=12 ( )-5=6 20-( )=18 ()-1=1419-( )=3 17-( )=10 11-( )=4 ( )-3=14 9-( )=8 ()-1=13()-4=16 () -9=1 ()-H=74-( )=1 ()- 7=11 19-( )=5 ( )-1=11 17-( )=11 ()-9=9()-2=6 ()- 6=13 ()-ι=o()-H=8 ()- 6=10 ()-17=115-( )=1 ()- 2=16 13-( )=11 10-( )=3 16-( )=13 ()-10=7( )-10=3 2-( )=0 17-( )=8 20-( )=4 20-( )=15 ()-11=6( )-13=6 6-( )=0 3-( )=2 9-( )=3 () -3=6 20-( )=197-( )=3 ()- 9=10 ( )-19=1 15-( )=12 () -9=7 ( )-10=0( )-4=2 13-( )二5 ()-5=710-( )=9 ()- 13=4 ()-5=43-( )=0 () -4二4 ()- 11=3 () -9=5 19-( )=17 () -2=713-( )=2 18-( )=5 4-( )=3 7-( )=4 5-( )=1 ()- 15=0 () -9=2 13-( )=10 () -1=1 ()- 17=0 ()- 3=11 ()- 15=5 () -5=2 18-( )=15 18-( )=3 ()- 5=10 ()- 18=0 ()- 13=0 8-( )=1 15-( )=11 () -1=7 11-( )=7 19-( )=12 8-( )=2 ()- 18≡1()- 8=10 10-( )二5 ()- 17=2 19-( )=18 20-( )二6 ()- 13=2 15-( )=7 14-( )=10 () -6=1 12-( )=10 () -7二918-( )=14 20-( )=14 13-( )二4 ()- 2=14 ()- 10=6 6-( )=18-( )=5 () -8=6 () -2=8 19-( )二9 15-( )二3 ()- 2=15 13-( )二9 ()- 8=11 18-( )二220以内减法口算练习题填空型时间:错误率:() -3=9 5-( )=2 20-( )二3 3-( )=1 ()- 13=7 5-( )二0 20-( )=2 16-( )=0 () -5=8 () -4二8 16-( )=3 ()■-7=5 ()- 1=12 5-( )=3 17-( )=13 17-( )=9 ()- 12=8 () -7=8 11-( )=1 6-( )=3 14-( )=8 19-( )=4 ()- 9=11 () -7=020-( )=10 12-( )二3 18-( )二4 () -6=9 ()- 12=2 ()■-7=2 8-( )二3 ()- 11=0 19-( )=15 14-( )=0 () -4二0 4-( )二2 ()- 19=0 19-( )=7 () -8=8 12-( )=1 11-( )二3 8-( )=0 ()- 12=6 ()- 6=12 16-( )=2 17-( )=1 () -2=4 7-( )二6 () -6=7 ()- 10=2 11-( )=10 ()- 20=0 18-( )=17 () -1=5 () -9=6 ()- 5二13 ()■-9=09-( )=5 ()- 15=1 ()- 5=14 17-( )=5 () -8二4 ()- 5=12 ()- 3=16 10-( )=6 ()- 1=15 ()- 1=16 11-( )=5 () -3=8 () -6=6 ()- 13=1 ()- 14=3 20-( )=9 ()- 12=1 () -2=9 5-( )=4 ()- 2=13 ()- 10=4 () -2=5 ()- 7=13 ()- 8=12 () -7=6 ()- 5=11 17-( )=2 16-( )=12 ()- 10=5 10-( )=418-( )二8 10-( )二2 15-( )二4 16-( )二5 () -7=7 ()- 3=1712-( )=0 () -3=7 () -8=116-( )二4 () -5=9 14-( )二1211-( )=6 ()- 2=18 ()- 1=14()- 16=3 17-( )=10 () -7二417-( )=14 () -1=8 ()- 1=1320-( )=16 10-( )=1 ()- 11=7() -3=1 ()- 7=11 19-( )二512-( )=11 17-( )=11 18-( )=9 () -2=6 ()- 6=13 1-( )=0 ()- 11=8 16-( )=10 ()- 17=1 ()- 14=1 ()- 2=16 13-( )=11 () -7=3 ()- 3=13 17-( )=7 ()- 10=3 () -2=0 17-( )=8 20-( )=4 20-( )=15 ()- 11=6 19-( )=6 () -6=0 3-( )=2 () -6=3 () -3=6 ()- 1=19 7-( )=3 19-( )=10 ()- 19=1 15-( )=12 16-( )二7()■10=0 () -4二2 () -8=5 () -5=7 10-( )=9 17-( )二4 () -5=4 3-( )=0 () -4=4()- 11=3 14-( )二5 ()- 2=17()-2=7 13-( )二2 ()- 13=5 () -1=3 () -3=4 () -4=1 ()- 15=0 11-( )二2 ()- 3=10 () -1=1 17-( )=0 ()- 3=11 ()- 15=5() -5=2 ()- 3=15 18-( )=3 ()- 5=10 18-( )=0 ()- 13=0 () -7=1 15-( )=11 8-( )=7 11-( )=7 ()- 7=12 () -6=2 19-( )=1 ()- 8=10 10-( )=5 ()- 17=2 19-( )=18 20-( )=6 15-( )=2 () -8=7 14-( )=10 () -6=1 12-( )=10 () -7=9 18-( )=14 ()- 6=14 () -9=4 ()- 2=14 16-( )=6 6-( )=1 () -3二5 14-( )二6 () -2=8 ()- 10=9 15-( )二3 17-( )=15 () -4=9 ()- 8=11 ()- 16=212-( )二9 5-( )二2 20-( )二3 () -2=1 ()- 13=7 () -5=020-( )二2 16-( )=0 13-( )二8 () -4二8 16-( )=3 12-( )=5 ()- 1=12 () -2=3 17-( )=13 () -8二9 20-( )二8 15-( )二811-( )=1 () -3=3 () -6=8 ()■-15=4 ()- 9=11 7-( )=0 ()- 10=10 12-( )二3 ()- 14=415-( )=9 14-( )=2 9-( )=2 8-( )=3 11-( )=0 19-( )=15 ()■-14=0 () -4=0 () -2=2 ()■-19=0 ()- 12=7 () -8二8 ()■-11=1 11-( )=3 8-( )=0 ()■-12=6 18-( )=12 16-( )二2 ()■-16=1 () -2=4 7-( )=6 () -6二7 ()- 10=2 ()- 1=10 ()•-20=0 ()- 1=17 6-( )二5 15-( )=6 18-( )=13 9-( )=0 9-( )=5 16-( )=1 19-( )=14 17-( )二5 12-( )二4 17-( )=12 ()■・3=16 10-( )二6 ()- 1=15 ()■-1=16 11-( )=5 11-( )=8 12-( )二6 ()- 13=1 17-( )=3 ()■-11=9 13-( )=1 11-( )二95-( )=4 15-( )=13 ()- 10=4 () -2=5 ()- 7=13 20-( )=12 () -7=6 ()- 5=11 ()- 15=216-( )=12 15-( )二5 10-( )二4 ()- 10=8 10-( )=2 15-( )=4 ()- 11=5 () -7=7 ()- 3=17 ()- 12=0 10-( )=7 () -8=1 ()- 12=4 () -5=9 ()- 2=12 () -5=6 20-( )=18 ()- 1=14 ()- 16=3 17-( )=10 () -7=4 ()- 3=14 9-( )二8 ()- 1=13 20-( )=16 10-( )=1 18-( )二7 4-( )=1 ()- 7=11 ()- 14=5 12-( )=11 ()- 6=11 () -9二9 () -2=6 19-( )=13 1-( )=0 ()- 11=8 ()- 6=10 18-( )=1 15-( )=1 ()- 2=16 ()- 2=11 () -7二3()- 3二13 17-( )二7 13-( )二3 2-( )=0 () -9=820-( )=4 20-( )=15 ()- 11=6 19-( )=6 6-( )=0 () -1=2 9-( )=3 9-( )=6 20-( )=19 7-( )=3 19-( )=10 ()- 19=1 ()- 3=12 16-( )=7 10-( )=0 () -4=213-( )=5 () -5=710-( )=9 17-( )二4 9-( )=4 3-( )=0 8-( )=4 14-( )=3 () -9=5 19-( )=17 9-( )=7 ()- 11=2 ()- -13=5 4-( )=3 7-( )二4 5-( )=1 15-( )=0 11-( )二2 ()■-3≡102-( )=1 ()- 17=0 14-( )=11 ()- 15=5 () -5=2 ()- -3=15 18-( )二3 ()- 5=10 ()•-18=0 ()- 13=0 () -7=1()- -4=11 8-( )=7 11-( )=7 19-( )=12 () -6=2 ()- 18=1 18-( )=10 () -5二5 19-( )二2 19-( )=18 ()- 14=6()- 13=2 15-( )=7 ()- 4=10 () -6=1 12-( )=10 () -7=9 18-( )=14 ()- 6=14 13-( )二4 ()- 2=14 ()- 10=6 () -5=1 () -3=5 () -8=6 10-( )=8 19-( )=9 15-( )=3 ()- 2=15 13-( )=9 19-( )=11 ()- 16=2 () -3=9 () -3=2 20-( )=3 () -2=1 ()- 13=7 () -5=0 ()- 18=2 ()- 16=0 13-( )=8 12-( )二8 ()- 13=3 ()-7=5 13-( )=12 () -2=3 17-( )=13 17-( )=9 ()- 12=8 () -7=8 11-( )=1 () -3二3 () -6=8 19-( )二4 20-( )=11 () -7=0 20-( )=10 () -9=3 ()- 14=4 15-( )=9 14-( )=2 () -7=2 8-( )二3 ()- 11=0 19-( )=15 ()- 14=0 () -4=0 4-( )二2()- 19=0 19-( )=7 16-( )=8 12-( )=1 () -8=3 () -8=0 18-( )=6 18-( )=12 ()- 14=2 17-( )=1 () -2=4 () -1=6 () -6=7 ()- 10=2 ()- 1=10 ()- 20=0 18-( )=17 () -1=5 15-( )=6 ()- 5=13 () -9=0 () -4=5 16-( )=1 ()- 5=14 ()- 12=5 12-( )=4 17-( )=12 19-( )=16 10-( )=6 16-( )=15 ()- 1=16 11-( )二5 11-( )二8 () -6=6 14-( )=1 17-( )二3 ()- 11=9 ()- 12=1 () -2=9 () -1=415-( )=13 14-( )二4 7-( )二5 20-( )=13 ()- 8二12 13-( )二6 ()- 5=11 ()- 15=2 16-( )=12 ()- 10=5 10-( )二4 ()- 10=8 10-( )二2 ()- 11=4 ()- 11=5 () -7=7()- 3=17()- 12=0 () -3=7 () -8=1 ()- 12=4 14-( )=9 ()- 2=12 11-( )=6 20-( )=18 ()- 1=14 ()- 16=3 17-( )=10 11-( )二4 17-( )=14 () -1=8 ()- 1=13 ()- 4=16 () -9=1 ()- 11=7 4-( )=1 ()- 7=11 ()- 14=5 ()- 1=11 ()- 6=11 18-( )=9 () -2=6 ()- 6=13 1-( )=0 ()- 11=8 16-( )=10 ()- 17=1 15-( )=1 ()- 2=16 ()- 2=1110-( )二3 16-( )=13 17-( )二7 ()- 10=3 2-( )=0 () -9=820-( )二4 20-( )=15 ()- 11=6()- 13=6 6-( )=0 () -1=2() -6二3 9-( )=6 20-( )=197-( )=3 ()- 9=10 ()- 19=115-( )=12 () -9=7 10-( )=0() -4=2() -8=5 12-( )=710-( )=9 17-( )二4 9-( )=4 () -3=0 () -4=4 14-( )=314-( )=5 19-( )=17 () -2=713-( )=2 18-( )=5 4-( )=3 7-( )=4 5-( )=1 15-( )=0 11-( )=2 ()- 3=10 () -1=1 ()- 17=0 ()- 3=11 20-( )=5 7-( )=2 ()- 3=15 ()- 15=3 ()- 5=10 ()- 18=0 13-( )=0 8-( )=1 15-( )=11 8-( )=7 () -4二7 ()- 7=12 () -6=2 19-( )=1 ()- 8=10 10-( )二5 19-( )=2 ()- 1=18 20-( )=6 ()- 13=2 15-( )=714-( )=10 () -6=1 ()- 2=10 () -7=9 18-( )=14 20-( )=14 13-( )二4 16-( )=14 16-( )二6 6-( )=1 8-( )二5 () -8二6 ()■-2=8 ()- 10=9 ()- 12=3 ()- 2=15( )-4=9 19-( )=11 18-( )=2 ()-3=9 () -3=2 ()-17=33-( )=1 ()- 13=7 5-( )=0 ()-18二2 ()- 16=0 ()-5=8()-4=8 ()- 13=3 12-( )=5 13-( )=12 () -2=3 17-( )=13 ()-8=9 ()- 12=8 ()-7=8()-ιo=ι() -3=3 ()-6=819-( )=4 ()- 9=11 7-( )=0 ( )-10=10 12-( )=3 18-( )=4 ( )-6=9 14-( )二2 ()-7=2()-5=3 ()- 11=0 ()-4=15 ( )-14=0 4-( )=0 ()-2=219-( )=0 19-( )=716-( )=8 12-( )=1 () -8二3 8-( )=018-( )=6 ()- 6=12 ()-14=217-( )=1 6-( )=4 7-( )=6 ()-6=7 ()- 10=2 11-( )=10 20-( )=0 ()- 1=17 ()-1=515-( )=6 ()- 5=13 () -9=0 9-( )=5 ()- 15=1 ()- 5=14 ()- 12=5 12-( )=4 17-( )=12 19-( )=16 () -4=6 ()- 1=15 ()- 1=16 () -6=5 11-( )二8 () -6=6 14-( )=1 17-( )=3 ()- 11=9 13-( )=1 () -2=9 () -1=4 15-( )=13 ()- 10=4 7-( )=5 20-( )=13 ()- 8=12 () -7=6 16-( )=11 ()- 15=2 16-( )=12 ()- 10=5 10-( )二4 18-( )二8 () -8二2 15-( )二4 16-( )=5 () -7=7 20-( )=17 12-( )=0 10-( )=7() -8=1 16-( )二4 () -5二9 14-( )二12 () -5=6 ()- 2=18 15-( )=14 ()- 16=3 17-( )=10 11-( )二4 ()- 3=14 () -1=8 ()- 1=13 ()- 4=16 () -9=1 18-( )=74-( )=1 ()- 7=11 ()- 14=5 ()- 1=11 17-( )=11 18-( )二9 () -2=6 19-( )=13 () -1=0 ()- 11=8 16-( )=10 18-( )=1 ()- 14=1 ()- 2=16 ()- 2=11 () -7=3 ()- 3=13 ()- 10=7 ()- 10=3 () -2=0 17-( )=8 20-( )=4 ()- 5=15 ()- 11=6 ()- 13=6 6-( )=0 3-( )=2 () -6=3 9-( )=6 ()- 1=19 () -4=3 ()- 9=10 20-( )=1 15-( )=12 16-( )二7()- 10=0 () -4=2() -8=5 () -5=7 () -1=917-( )二4 9-( )二4 () -3=0 () -4=414-( )二3 () -9二5 ()- 2=17 9-( )=7 13-( )=2 18-( )=5 () -1=3 () -3=4 5-( )=1 ()- 15=0 () -9=2()- 3=10 () -1=1()- 17=0 14-( )=11 ()- 15=5 () -5=2 18-( )=15 ()- 15=3 15-( )=10 18-( )=0 ()- 13=0 8-( )=1 ()- 4=11 () -1=7 11-( )=7 19-( )=12 () -6=2 19-( )=1 ()- 8=10 () -5=5 ()- 17=2 19-( )=18 20-( )=6 ()- 13=2 15-( )=7 ()- 4=10 () -6=1 12-( )=10 () -7=9 ()- 4=14 ()- 6=14 () -9二4 ()- 2=14 ()- 10≡66-( )=1 8-( )二5 () -8=6 10-( )二8 19-( )=9 ()- 12=3 ()- 2=15 13-( )二9 19-( )=11 18-( )二2 12-( )二9 5-( )二2 ()- 17=3 () -2=1 20-( )=7() -5=0 20-( )=2 16-( )=0 () -5=8 12-( )二8 ()- 13=3 12-( )二5 13-( )=12 () -2=3 17-( )=1317-( )=9 ()- 12=8 () -7=8 11-( )=1 6-( )=3 () -6=8 19-( )=4 ()- 9=11 7-( )=0 20-( )=10 12-( )=3 18-( )二4 15-( )=9 14-( )=2 () -7=2 8-( )=3 ()- 11=0 19-( )=15 14-( )=0 4-( )=0 () -2=2 19-( )=0 ()- 12=7 () -8二8 12-( )=1 11-( )=3 () -8=0 18-( )=6 ()- 6=12 ()- 14=2 ()- 16=1 6-( )二4 () -1=6 () -6二7 ()- 10=2 ()- 1=10 20-( )=0 ()- 1=17 6-( )二5 15-( )二6 ()- 5=13 9-( )=0 9-( )二5 16-( )=1 19-( )=14 17-( )二5 () -8二4 ()- 5二12 ()- 3=16 10-( )=6 16-( )=15 ()- 1=16 11-( )二5 () -3二8 () -6=6 14-( )=1 ()- 14=320-( )=9 ()- 12=1 () -2=9 5-( )=4 ()- 2=13 ()- 10=4 7-( )=5 20-( )=13 ()- 8=12 () -7=6 16-( )=11 ()- 15=2 ()- 4=12 15-( )=5 () -6=4 ()- 10=8 10-( )=2 ()- 11=4 16-( )=5 () -7=7 ()- 3=17 ()- 12=0 10-( )=7 () -8=1 16-( )=4 () -5=9 ()- 2=12 () -5=6 ()- 2=18 ()- 1=14 19-( )二3 ()- 7=10 11-( )二417-( )=14 9-( )二8 14-( )二13 20-( )=16 10-( )=1 18-( )=7 () -3=1 18-( )=11 19-( )二5 12-( )=11 17-( )=11 () -9二9 () -2=6 ()- 6=13 () -1=0 19-( )=8 16-( )=10 18-( )=1 15-( )=1 18-( )=16 ()- 2=11 10-( )二3 ()- 3二13 ()- 10=713-( )=3 () -2=0 17-( )=8 20-( )=4 ()- 5=15 ()- 11=6 19-( )=6 6-( )=0 () -1=2 9-( )=3 () -3=6 20-( )=19 () -4=3 19-( )=10 20-( )=1 15-( )=12 () -9=7 10-( )=0 6-( )=2 () -8=5 () -5=710-( )=9 17-( )=4 9-( )=4 3-( )=0 8-( )=4 ()- 11=3 () -9=5 19-( )=17 () -2=713-( )二2 18-( )二5 ()-1=3 () -3=4 () -4=1 ()- 15=011-( )=2 ()- 3=10 () -1=1 17-( )=0 ()- 3=11 20-( )二5 7-( )二2 18-( )=15 ()- 15=3 ()- 5=10 18-( )=0 ()- 13=0 () -7=1 15-( )=11 () -1=7 11-( )=7 19-( )二12 8-( )=2 19-( )=1 ()- 8=10 10-( )二519-( )=2 19-( )=18 20-( )=615-( )=2 15-( )=7 14-( )=10 () -6=1 12-( )=10 () -7=9()- 4=14 20-( )=14 () -9二4 16-( )=14 16-( )二6 6-( )=18-( )=5 14-( )=6 10-( )=8 19-( )=9 ()- 12=3 ()- 2=15() -4=9 19-( )=11 ()- 16=212-( )=9 5-( )=2 ()- 17=3() -2=1 20-( )=7 5-( )=0()- 18=2 16-( )=0 ()-5=812-( )二8 16-( )二3 12-( )二5 ()- 1=12 () -2=3 ()- 4=1317-( )二9 20-( )二8 () -7二8()- 10=1 6-( )二3 () -6=819-( )二4 ()- 9=11 7-( )=0()-:10=10 12-( )二3 18-( )二4 15-( )二9 ()- 12=2 9-( )二2 () -5二3 11-()=0 19-( )二1514-( )=0 4-( )=0 () -2=2 ()- 19=0 ()- 12=7 () -8二8 ()- 11=1 () -8=3 () -8=0 ()- 12=6 ()- 6=12 16-( )=2 17-( )=1 6-( )=4 () -1=6 13-( )=7 12-( )=2 ()- 1=10 20-( )=0 ()- 1=17 6-( )二5 () -9=6 ()- 5=13 () -9=0 () -4=5 ()- 15=1 19-( )=14 ()- 12=5 12-( )=4 ()- 5=12 19-( )=16 () -4=6 ()- 1=15 17-( )=16 11-( )二5 11-( )二8 12-( )=6 14-( )=1 ()- 14=3 20-( )二9 13-( )=1 11-( )二95-( )二4 15-( )=13 14-( )二4 7-( )二5 ()- 7=13 ()- 8=1213-( )=6 16-( )=11 ()- 15=216-( )=12 15-( )二5 10-( )二4 18-( )二8 10-( )二2 15-( )二4。

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