一年级数学上册填未知加数专项练习 (1)

填未知数口算练习1 时间（5分钟）班级__________ 姓名___________ 对____题

9+ = 11

+7=112+ =11

5+ =11 +2=114+8+5=

+7=128+ =12

+9=19

5+ =13 +4=15

4+5+6=

9+ =173+ =12 9+ =15 +8=15

3+ =15

8+7-5=

7+ =12 6+ =14 7+ =18 1+ =13 6+7= 16-4-2= 8+ =11 +4=12 2+ =13 4+ =13 9+ =14 7-2+5= 4+ =11 9+3= 6+7= +3=12 8+6= 13-3-4= 9+ =12 5+ =14 8+ =17 3+ =11 6+ =15 9+5-3= +9=17 +6=14 +7=16 4+ =15 7+ =13 7+8-5= +8=13 +7=14 5+ =14 4+ =17 8+ =14 5-2+9= 9+ =13 8+ =13 8+ =15 8+5= 6+ =14 8-7+5= +9=16 6+ =11 9+ =15 +5=14 4+ =13 8+9+3= 5+7= 8+ =15 7+ =16 +8=15 6+ =11 7+3+7= 6+ =15 7+ =13 +6=12 9+ =16 +8=17 9+5-2= 7+ =14 +9=13 3+ =17 2+ =11 8+ =15 10+8+2= +9=12 8+ =16 5+6= 5+ =13 3+ =13 7+6-3= 4+ =13 +7=13 6- =3 9+ =18 7+ =17 9+9-7= 3+ =11 4+ =15 6+ =17 17- =14 8+8= 7+11-6=

9+ =16 2+ =12 7+ =16 6+ =10 15- =12 7-4+8= 10+ =12 9+ =17 6+ =14 7+ =11 3+ =14 6+8=3= 6+ =12 3+8= 3+ =12 6+ =15 9+ =14 6+10-3=

填未知数口算练习2 时间（5分钟）

班级__________ 姓名___________ 对____题

( )+6=13 6+( )=14 ( )+5=11 ( )+6=13 ( )+7=13 ( )+4=12 8+( )=16 ( )+6=14 9+( )=11 4+( )=8 ( )+8=11 8+( )=14 ( )+8=17 ( )-5=14 9-( )=7 ( )+6=14 6+( )=12 ( )+9=13 ( )+9=17 ( )+9=14 ( )+8=15 4+( )=13 ( )+4=11 8+( )=9 3+( )=9 ( )+9=16 8+( )=11 ( )+6=12 9+( )=13 ( )-7=12 ( )+5=13 9+( )=18 ( )+8=13 ( )+5=14 18-( )=13 ( )+7=15 5+( )=13 ( )+3=11 19-( )=18 ( )-8=5 ( )+8=14 7+( )=16 ( )+9=15 14-( )=9 15-( )=11 ( )+9=12 9+( )=14 ( )+8=11 9+( )=14 13-( )=10 ( )+6=15 9+( )=18 ( )+8=16 7-( )=3 ( )-6=9 ( )+4=18 6+( )=15 ( )+7=12 6-( )=6 19-( )=15 ( )+9=15 4+( )=11 ( )+4=12 ( )+6=9 ( )-0=8 ( )+9=18 9+( )=12 ( )+7=14 17-( )=9 13-( )=5 ( )+6=17 7+( )=11 ( )+5=12 13-( )=5 ( )-5=6 ( )+9=17 7+( )=13 ( )+6=13 13-( )=9 15-( )=7 ( )+7=14 8+( )=12 ( )+5=14 15-( )=7 ( )-6=3

6+( )=16 6+( )=13 ( )+7=16 16-( )=8 17-( )=9 3+( )=12 9+( )=13 ( )+7=15 ( )-8=11 13-( )=9 ( )+8=12 8+( )=15 ( )+7=11 ( )-4=5 ( )-13=7