小学三年级口算题(两三位数乘除一位数)
小学数学三年级上册(两三位数乘一位数)口算题打印
11×2=( )
308×5=( )
88×9=( )
609×1=( )
404×2=( )
742×3=( )
400×8=( )
818×6=( )
107×5=( )
311×2=( )
307×4=( )
75×5=( )
466×7=( )
707×7=( )
782×7=( )
85×6=( )
44×8=( )
57×
计算练习题
正确数: 46×4=( ) 450×4=( ) 85×6=( ) 19×8=( ) 664×2=( ) 782×7=( ) 609×8=( ) 39×6=( ) 44×8=( ) 309×4=( ) 944×6=( ) 57×5=( ) 88×6=( ) 404×2=( ) 609×1=( )
计算练习题
用时: 88×9=( ) 67×8=( ) 57×8=( ) 795×4=( ) 654×2=( ) 782×7=( ) 308×5=( ) 33×8=( )
编号:774
536,824,184
4872,5454,1 800
2828,6200,4 77
编号:774 67×8=( ) 609×8=( )
4949,1880,3 75
编号:776 609×6=( ) 400×8=( ) 209×3=( ) 706×6=( ) 25×7=( ) 33×8=( ) 107×5=( ) 53×9=( ) 944×6=( ) 67×8=( ) 707×7=( )
95×2=( ) 466×7=( ) 57×8=( ) 11×2=( ) 103×8=( ) 88×6=( ) 654×2=( ) 707×6=( ) 57×5=( ) 634×7=( ) 235×8=( )
【精品】小学数学计算题专题三 乘法-类型二 两,三位数乘一位数
专题三乘法类型二两,三位数乘一位数【知识讲解】一、口算方法:1.整十数、整百数乘一位数:先把整十数、整百数0前面的数与一位数相乘,算出乘积后,再看乘数的末尾有几个0,就在积的末尾添上几个0例如:20×32.两位数乘一位数(不进位):例如:12×4二、笔算方法:1.多位数乘一位数:(1把一位数写在下面,与多位数的个位对齐(2)从个位算起用一位数依次去乘多位数每一位上的数(3(4)一位数与多位数哪一位上的数相乘,就在横线下面对着那一位写积2.因数有0的乘法:(1)一个因数中间有0:方法:相同数位对齐,从个位乘起,用一位数依次去乘另一因数每一位上的数,在与中间的0相乘时,如果没有进位数,要在那一位上写0占位,如果有进位数,必须加上例如:604×8巧记口诀:因数中间若有0,乘的顺序不变更个位起,向前乘,0的数位不能扔该进位,则进位,没有进位就写0(2)一个因数末尾有0:简便算法是:先用一位数去乘另一个因数0前面的数,再看末尾有几个0,就在积的末尾添上几个0例如:280×3巧记口诀:因数末尾若有0,简便算法最可行末尾0前对齐位,乘积后面0补请三、类型不进位例如:23×3 342×21.多位数乘一位数不连续进位例如:16×3连续进位例如:76×4因数中间有0 例如:604×82.有0的乘法因数末尾有0 例如:280×3【巩固练习】一、口算:30×3=300×5=600×3=200×8=50×6=100×4=20×6=800×6=70×2=600×5=900×2=400×4=20×9=300×6=50×7=900×4=120×0= 600×5= 3000×2= 140×5=142×6= 3000×3= 2×500= 70×2=40×4= 4×600= 40×9=30×6=700×4=3×70=15×6=500×2=3000×8=7×8000=20×50=90×9=32×10=51×10=31×3=12×4=243×2=321×3=16×5= 10×10=12×5= 30×4= 79×6= 208×5=二、估算:21×6≈48×5≈397×3≈510×7≈12×5≈53×6≈77×8≈38×9≈31×5≈88×9≈402×1≈304×8≈82×6≈51×7≈69×8≈47×9≈3×641≈ 189×7≈6×927≈ 398×6≈59×7≈71×9≈593×5≈602×3≈三、改错(1)(2)(3)四、竖式计算313×3= 253×4= 499×3= 172×9=408×6= 580×5= 825×8= 602×7= 935×9=1070×4= 19×3= 117×5=34×8= 1008×5= 3004×2= 260×5=五、判断题1.0+1+2+3+4+5<0×1×2×3×4×5()2.□表示一个数,那么0×□,0+□,□﹣0的结果都相等()3.0乘任何数都得0()4.两位数乘一位数的积一定是两位数()5.280×5积的末尾只有一个0()6.一个两位数乘一个一位数,它的积可能是两位数也可能是三位数()7.3□5×3的积一定是四位数()8.0×9×4<0×9+4()9.口算700×8时,要用到口诀:七八五十六.()10. 在4□×2中,不管□填几,得数都是两位数()六、填空1.把40+40+40+40+40改写简便算式是_________2. 在口算24×2时,可以这样思考:×2+×23.估算98×4时,把看做计算,估算结果是4.最小的三位数与最大的一位数相乘,积是()5.0和()相乘都得0,1和()相乘都得任何数6.105×6的积的中间有()零,末尾有()个零7.6个70写成乘法算式是(),结果是()8.208×9是求()个()相加的和9.计算35﹣2×7时,应先算,再算10.在()时填上适当的数① 8×9×5=8×()×9② 18×6=18×5+()③ 9×24=10×24-()④ 283+284+285+286+287=285×()=()11.在○里填上﹥、﹤或=72×5○400 6×7×0○6×7320×5○32×5 24×4○96102×3○360 401×3○806七、选择题1.在□50×4中,要使积大于3000,方框中最小填()A.7 B.8 C.92.一位数乘三位数,积是()位数A.五B.四C.可能是三位数,也可能是四位数3.120×5的得数末尾有()个0.A.1 B.2 C.34.得数是0的算式是()A.7+0 B.7﹣0 C.7×05.780×5的积是()位数.A.三 B.四 C.五6.不计算,比较大小:678×5()456×9A.> B.= C.<7.578×6的积的最高位是()A.百位 B.十位 C.千位8.要使□14×7的积是三位数,□中只能填()A.1 B.2 C.3八、动脑筋1.在□里填入合适的数2.×6=420;×80=240参考答案与解析一、口算【答案】90,1500,1800,1600; 300,400,120,4800;140,3000,1800,1600; 180,1800,350,3600;0,3000,6000,700; 852,9000,1000,140;160,2400,360,180; 2800,210,90,1000;24000,56000,1000,810; 320,510,93,48;486,963,80,100; 60,120,464,1040;二、估算【解析】根据乘法的估算方法,把两个因数看做与它接近的整十数或整百数进行估算【答案】解:21×6≈20×6=120 48×5≈50×5=250397×3≈400×3=1200 510×7≈500×7=350012×5≈10×5 =50 53×6≈50×6=30077×8≈80×8=640 38×9≈40×9=36031×5≈30×5=150 88×9≈90×9=810402×1≈400×1=400 304×8≈300×8=240082×6≈80×6=480 51×7≈50×7=35069×8≈70×8=560 47×9≈50×9=4503×641≈3×600=1800 189×7≈200×7=14006×927≈6×1000=6000 398×6≈400×6=240059×7≈60×7=42071×9≈70×9=630593×5≈600×5=3000602×3≈600×3=1800三、改错(1)【解析】此题错在把乘数“3”与第一个乘数十位上的2对齐了,且每次相乘的积也没有写在对应的数位上【答案】(2)【解析】此题错在个位相乘满十没有向十位进一,导致计算结果错误【答案】(3)【解析】此题错在一位数4乘十位上的5时,得数20的“0”没有写在积的十位上,而把应落在百位上的2写在十位上了【答案】四、竖式计算【解析】根据整数乘法的计算方法进行计算【答案】解:313×3=939253×4=1012499×3=1497172×9=1548408×6=2448580×5=2900825×8=6600602×7=4214935×9=84151070×4=4280 19×3=57 117×5=58534×8=272 1008×5=5040 3004×2=6008 260×5=1300五、判断1.【解析】先根据整数加法和乘法运算的计算法则计算,再根据整数大小的比较方法进行比较即可求解【答案】解:因为0+1+2+3+4+5=150×1×2×3×4×5=015>0所以0+1+2+3+4+5>0×1×2×3×4×5故答案为:×2.【解析】根据题意,假设□是5,分别求出0×□,0+□,□﹣0的结果,然后再进一步解答【答案】解:假设□是5;0×□=0×5=0;0+□=0+5=5;□﹣0=5﹣0=5;所以,结果不相等故答案为:×3.【解析】根据乘法的意义可知:0乘任何数都得0,据此判断【答案】解:由于0表示没有,所以0乘任何数都得0故答案为:√4.【解析】根据题意,假设两位数是10或99,最大的一位数是9,分别用9去乘10与99,然后再进一步解答【答案】解:假设两位数是10或99,最大的一位数是9;9×10=90,90是两位数;9×99=891,891是三位数;所以,最大的一位数乘两位数积可能是两位数,也可能是三位数故答案为:×5.【解析】根据乘数末尾有0的乘法求出280×5的积再进行判断【答案】解:280×5=1400,280×5的积的末尾有2个0故答案为:×6. 【解析】根据题意,假设一位数是1,两位数是10,或一位数是9,两位数是99,分别求出它们的乘积,然后再进一步解答【答案】解:假设一位数是1,两位数是10,或一位数是9,两位数是99;1×10=10,10是两位数;9×99=891,891是三位数;所以,一位数乘两位数的积可能是两位数,也可能是三位数7.【解析】运用举反例法求解,当□里面是0时,求出结果,即可求解【答案】解:当□=0时,则算式为:305×3=915915是三位数,所以原题说法错误故答案为:×8.【解析】根据0乘任何数都得0,分别计算出两边算式的结果,再比较,从而求解【答案】解:0×9×4=00×9+4=0+4=40<4所以:0×9×4<0×9+4,原题说法正确故答案为:√9.【解析】口算700×8时,先把700看成7个百,再根据乘法口诀进行计算【答案】解:口算700×8时,先把700看成7个百,也就是7个百乘上8,用乘法口诀七八五十六,得出7个百乘8是56个百,也就是5600原题说法是正确的故答案为:√10.【解析】根据题意,□中最小填0,最大填9,分别求出它们的乘积,然后再进一步解答【答案】解:□中最小填0,最大填9;40×2=80;80是两位数;49×2=98;98是两位数;所以,在4□×2中,不管□填几,得数都是两位数故答案为:√六、填空1.【答案】40×52.【解析】利用整数乘法的意义:24×2表示24个2是多少,或2个24是多少;因此可以把24分成20和4,可以说成2个20再加上2个4;进一步算得结果即可【答案】解:在计算24×2时可以这样思考:2个20再加上2个4结果为48故答案为:20,43. 【解析】在估算时,要根据四舍五入法,将98看成100,再根据乘数是整百数的乘法计算方法计算【答案】解:估算98×4时,把 98看做 100计算,估算结果是 400故答案为:98,100,4004.【解析】最大的三位数是999,最小的一位数是1,然后再把这两个数相乘即可【答案】解:最大的三位数是999,最小的一位数是1;999×1=999;所以,最大的三位数与最小的一位数相乘的积是999故答案为:9995.【解析】根据0在整数乘法中的特性,0乘任何数都得0在乘法里,1和任何数相乘仍得原数;据此判断得解【答案】任何数,任何数6.【解析】根据整数乘法的计算方法,求出105×6的积,然后再进一步解答【答案】解:105×6=630;630的中间没有0,末尾有1个0;所以,105×6的积的中间有0个零,末尾有1个零故答案为:0,17.【答案】6×70,4208.【答案】9,2089. 【解析】35﹣2×7有乘法和减法,要先算乘法,再算减法【答案】解:35﹣2×7=35﹣14=21是先算乘法,再算减法故答案为:乘法,减法10.【答案】○15;○218;○324;○45,142511.【解析】根据整数乘法的计算方法求出积,然后再按照整数大小比较的方法进行解答【答案】解:72×5<400;6×7×0<6×7;320×5>32×5;24×4=96;102×3<360;401×3>806故答案为:<,<,>,=,<,>七、选择题1.【解析】根据乘除法互逆关系,求出3000÷4的商为750,再根据积的变化规律:一个因数(0除外)不变,另一个因数扩大若干倍,积也扩大相同的倍数,即可得到方框中最小填的数【答案】解:3000÷4=750故在□50×4中,要使积大于3000,方框中最小填8故选:B2. 【解析】据题意,假设这个一位数是5,三位数是100和700;然后再进一步解答即可【答案】解:根据题意,假设这个一位数是5,三位数是100和700;5×100=500;500是三位数;5×700=3500;3500是四位数;由以上可得:一位数乘三位数所得的积是三位数或四位数故选:C3. 【解析】本题可根据整数末尾有零的整数乘法的运算法则分析判断【答案】解:在计算120×5时,可先计算12×5,然后在得数的后边再将原来因数120后面的零加上,12×5=60,则120×5=600,即120×5的积的末尾有2个0故选:B4.【解析】根据一个数加0、减0、乘0的计算方法得出结果,找出结果是0的即可【答案】解:7+0=77﹣0=77×0=0得数是0的算式是7×0故选:C5. 【解析】根据三位数乘一位数的积可能是三位数也可能是四位数,要看第一个因数的百位上的数与这个数的积满不满十,如果满十它们的积就是四位数.【答案】解:780×5=3900;因为780的百位上的数与5的积满十,所以它们的积是四位数故选:B6. 【解析】观察数据特点可知,在乘法算式中,678×5可以估算为700×5=3500,而456×9大于400×9=3600;据此判断【答案】解:因为678×5<700×5=3500456×9>400×9=3600所以678×5<456×9故选:A7.【解析】根据整数乘法的计算方法,求出578×6的积,然后再进一步解答【答案】解:578×6=3468;3468的最高位是千位;所以,578×6的积的最高位是千位故选:C8. 【解析】根据题意,把每个选项中的数代入□14×7,分别求出它们的乘积,然后再进一步解答【答案】解:A.把1代入□14×7可得:114×7=798,积是三位数;B.把2代入□14×7可得:214×7=1498,积是四位数;C.把3代入□14×7可得:314×7=2198,积是四位数;所以,□中填1,□14×7的积是三位数故选:A八、动脑筋1.【答案】答案不唯一2.【解析】因数、因数和积的关系:因数×因数=积,积÷一个因数=另一个因数,据此解答即可【答案】解:因为420÷6=70,所以70×6=420;因为240÷80=3,所以3×80=240故答案为:70,3。
苏教版小学数学三年级上册课时同步口算题卡及答案(全册)
苏教版小学数学三年级上册口算卡第一单元第一课时两三单位数乘一位数口算题卡课前小练3×10= 20×3= 30×4=3×100= 200×3= 300×4=70×6= 900×8= 70×4=自主练习一、看图填一填。
用加法计算:()用乘法计算:(),想:()个10乘()等于()个10,就是()。
二、想一想,填一填。
300×4=(),想:()个100乘()等于()个100,就是()。
三、想一想,算一算。
500×4= 300×2= 200×8=30×8= 60×5= 70×4=50×3= 200×4= 30×3=400×6= 30×5= 700×8=参考答案课前小练30、60、120、300、600、1200、420、7200、280自主练习一、 10+10+10=30、10×3=30、1、3、3、30二、1200、3、4、12、1200三、2000、600、1600、240、300、280、150、800、90、2400、150、5600第一单元第二课时倍数问题1口算题卡课前小练有5个,10里边有()个5,的个数是个数的()倍。
自主练习一、想一想、算一算。
40×4= 30×2= 60×3=6×600= 8÷4= 300×5=10÷2= 10×5= 20÷4=300×7= 500×6= 12÷6=二、解决问题。
1、实验小学饲养小组养了36只兔子,9只小花猫,4只小狗。
①养的兔子是养的小狗的多少倍?②养的兔子是养的小花猫的多少倍?2、停车场里停着24辆小轿车,8辆面包车。
口算题 (三位数除以一位数) 2000题
月日姓名: 练习范围:三位数除以一位数题数:100 分秒成绩:396 ÷ 3 = 830 ÷ 2 = 662 ÷ 2 = 969 ÷ 3 = 905 ÷ 5 = 948 ÷ 3 = 480 ÷ 3 = 616 ÷ 4 = 430 ÷ 2 = 864 ÷ 6 = 945 ÷ 5 = 660 ÷ 6 = 965 ÷ 5 = 284 ÷ 2 = 850 ÷ 5 = 436 ÷ 2 = 715 ÷ 5 = 416 ÷ 2 = 465 ÷ 3 = 842 ÷ 2 = 729 ÷ 3 = 615 ÷ 5 = 896 ÷ 8 = 928 ÷ 8 = 310 ÷ 2 = 578 ÷ 2 = 976 ÷ 2 = 732 ÷ 4 = 993 ÷ 3 = 600 ÷ 3 = 952 ÷ 8 = 228 ÷ 2 = 994 ÷ 7 = 654 ÷ 3 = 630 ÷ 5 = 950 ÷ 5 = 728 ÷ 4 = 392 ÷ 2 = 745 ÷ 5 = 296 ÷ 2 = 844 ÷ 2 = 556 ÷ 4 = 942 ÷ 6 = 724 ÷ 2 = 609 ÷ 3 =936 ÷ 9 = 714 ÷ 7 = 815 ÷ 5 = 810 ÷ 2 = 625 ÷ 5 = 756 ÷ 4 = 684 ÷ 3 = 520 ÷ 4 = 780 ÷ 2 = 945 ÷ 9 = 880 ÷ 5 = 368 ÷ 2 = 244 ÷ 2 = 875 ÷ 5 = 742 ÷ 7 = 428 ÷ 4 = 908 ÷ 2 = 604 ÷ 2 = 699 ÷ 3 = 450 ÷ 2 = 579 ÷ 3 = 915 ÷ 5 = 450 ÷ 3 = 424 ÷ 2 = 524 ÷ 2 = 930 ÷ 3 = 748 ÷ 4 = 220 ÷ 2 = 764 ÷ 4 = 688 ÷ 2 = 459 ÷ 3 = 840 ÷ 6 = 918 ÷ 2 = 879 ÷ 3 = 786 ÷ 3 = 897 ÷ 3 = 924 ÷ 3 = 690 ÷ 3 = 466 ÷ 2 = 980 ÷ 4 = 482 ÷ 2 = 604 ÷ 4 = 890 ÷ 5 = 870 ÷ 5 = 738 ÷ 6 = 810 ÷ 5 = 752 ÷ 4 = 444 ÷ 4 = 880 ÷ 2 = 984 ÷ 4 = 346 ÷ 2 = 639 ÷ 3 = 746 ÷ 2 = 847 ÷ 7 = 840 ÷ 8 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100786 ÷ 3 = 770 ÷ 5 = 729 ÷ 3 = 488 ÷ 4 = 756 ÷ 2 = 771 ÷ 3 = 924 ÷ 3 = 684 ÷ 3 = 912 ÷ 8 = 994 ÷ 2 = 897 ÷ 3 = 928 ÷ 8 = 888 ÷ 8 = 580 ÷ 5 = 576 ÷ 2 = 524 ÷ 4 = 664 ÷ 2 = 938 ÷ 7 = 477 ÷ 3 = 875 ÷ 5 = 745 ÷ 5 = 764 ÷ 4 = 675 ÷ 5 = 808 ÷ 2 = 724 ÷ 2 = 654 ÷ 3 = 612 ÷ 6 = 506 ÷ 2 = 915 ÷ 5 = 468 ÷ 2 = 516 ÷ 4 = 428 ÷ 4 = 905 ÷ 5 = 604 ÷ 2 = 994 ÷ 7 = 270 ÷ 2 = 462 ÷ 2 = 964 ÷ 4 = 556 ÷ 2 = 344 ÷ 2 = 810 ÷ 5 = 694 ÷ 2 = 908 ÷ 4 = 400 ÷ 4 = 702 ÷ 6 =346 ÷ 2 = 969 ÷ 3 = 628 ÷ 4 = 542 ÷ 2 = 992 ÷ 8 = 952 ÷ 8 = 876 ÷ 4 = 945 ÷ 5 = 212 ÷ 2 = 830 ÷ 2 = 476 ÷ 2 = 942 ÷ 6 = 732 ÷ 2 = 444 ÷ 4 = 972 ÷ 2 = 752 ÷ 4 = 868 ÷ 4 = 732 ÷ 6 = 704 ÷ 4 = 882 ÷ 6 = 858 ÷ 3 = 206 ÷ 2 = 818 ÷ 2 = 750 ÷ 5 = 459 ÷ 3 = 717 ÷ 3 = 861 ÷ 3 = 834 ÷ 3 = 864 ÷ 6 = 465 ÷ 3 = 840 ÷ 6 = 832 ÷ 2 = 732 ÷ 4 = 822 ÷ 3 = 460 ÷ 4 = 930 ÷ 2 = 276 ÷ 2 = 966 ÷ 3 = 471 ÷ 3 = 951 ÷ 3 = 436 ÷ 2 = 854 ÷ 2 = 466 ÷ 2 = 747 ÷ 3 = 381 ÷ 3 = 306 ÷ 3 = 904 ÷ 4 = 852 ÷ 6 = 724 ÷ 4 = 735 ÷ 3 = 984 ÷ 3 = 976 ÷ 2 = 846 ÷ 6 = 492 ÷ 2 = 900 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100976 ÷ 2 = 736 ÷ 4 = 750 ÷ 3 = 393 ÷ 3 = 840 ÷ 6 = 992 ÷ 8 = 400 ÷ 4 = 342 ÷ 3 = 938 ÷ 7 = 830 ÷ 5 = 973 ÷ 7 = 864 ÷ 6 = 695 ÷ 5 = 771 ÷ 3 = 620 ÷ 4 = 654 ÷ 2 = 598 ÷ 2 = 496 ÷ 4 = 715 ÷ 5 = 520 ÷ 5 = 948 ÷ 2 = 664 ÷ 2 = 654 ÷ 3 = 556 ÷ 4 = 956 ÷ 2 = 990 ÷ 5 = 330 ÷ 2 = 612 ÷ 6 = 700 ÷ 2 = 890 ÷ 5 = 540 ÷ 5 = 816 ÷ 4 = 392 ÷ 2 = 936 ÷ 3 = 804 ÷ 2 = 706 ÷ 2 = 298 ÷ 2 = 748 ÷ 4 = 558 ÷ 2 = 256 ÷ 2 = 888 ÷ 8 = 228 ÷ 2 = 202 ÷ 2 = 903 ÷ 3 = 508 ÷ 2 =524 ÷ 2 = 905 ÷ 5 = 510 ÷ 3 = 642 ÷ 3 = 507 ÷ 3 = 924 ÷ 4 = 950 ÷ 5 = 444 ÷ 4 = 952 ÷ 8 = 604 ÷ 4 = 610 ÷ 5 = 729 ÷ 3 = 604 ÷ 2 = 490 ÷ 2 = 570 ÷ 3 = 548 ÷ 2 = 747 ÷ 3 = 942 ÷ 6 = 639 ÷ 3 = 770 ÷ 5 = 920 ÷ 2 = 346 ÷ 2 = 850 ÷ 5 = 880 ÷ 5 = 675 ÷ 3 = 835 ÷ 5 = 852 ÷ 2 = 882 ÷ 6 = 310 ÷ 2 = 778 ÷ 2 = 870 ÷ 5 = 908 ÷ 2 = 466 ÷ 2 = 708 ÷ 4 = 780 ÷ 4 = 975 ÷ 3 = 912 ÷ 2 = 218 ÷ 2 = 964 ÷ 2 = 690 ÷ 3 = 412 ÷ 4 = 428 ÷ 4 = 786 ÷ 3 = 994 ÷ 7 = 896 ÷ 2 = 694 ÷ 2 = 700 ÷ 5 = 964 ÷ 4 = 422 ÷ 2 = 810 ÷ 2 = 900 ÷ 3 = 542 ÷ 2 = 848 ÷ 4 = 945 ÷ 9 = 951 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100498 ÷ 2 = 492 ÷ 2 = 396 ÷ 3 = 771 ÷ 3 = 784 ÷ 2 = 660 ÷ 5 = 994 ÷ 7 = 234 ÷ 2 = 888 ÷ 8 = 384 ÷ 3 = 984 ÷ 2 = 868 ÷ 4 = 694 ÷ 2 = 654 ÷ 3 = 936 ÷ 6 = 206 ÷ 2 = 952 ÷ 8 = 778 ÷ 2 = 903 ÷ 3 = 730 ÷ 2 = 945 ÷ 9 = 507 ÷ 3 = 604 ÷ 2 = 418 ÷ 2 = 520 ÷ 4 = 702 ÷ 3 = 220 ÷ 2 = 423 ÷ 3 = 768 ÷ 4 = 696 ÷ 2 = 496 ÷ 4 = 464 ÷ 4 = 506 ÷ 2 = 254 ÷ 2 = 951 ÷ 3 = 875 ÷ 7 = 808 ÷ 2 = 660 ÷ 2 = 346 ÷ 2 = 612 ÷ 6 = 875 ÷ 5 = 976 ÷ 2 = 830 ÷ 2 = 660 ÷ 6 = 862 ÷ 2 =686 ÷ 2 = 870 ÷ 3 = 588 ÷ 4 = 652 ÷ 4 = 724 ÷ 4 = 888 ÷ 3 = 988 ÷ 4 = 908 ÷ 4 = 909 ÷ 3 = 508 ÷ 2 = 672 ÷ 4 = 882 ÷ 6 = 280 ÷ 2 = 890 ÷ 5 = 969 ÷ 3 = 824 ÷ 8 = 465 ÷ 3 = 958 ÷ 2 = 668 ÷ 4 = 675 ÷ 3 = 714 ÷ 7 = 342 ÷ 3 = 520 ÷ 2 = 712 ÷ 4 = 690 ÷ 3 = 444 ÷ 4 = 950 ÷ 5 = 228 ÷ 2 = 879 ÷ 3 = 436 ÷ 2 = 656 ÷ 2 = 840 ÷ 6 = 466 ÷ 2 = 812 ÷ 2 = 700 ÷ 2 = 942 ÷ 6 = 462 ÷ 2 = 872 ÷ 8 = 945 ÷ 5 = 870 ÷ 5 = 340 ÷ 2 = 750 ÷ 5 = 537 ÷ 3 = 381 ÷ 3 = 812 ÷ 4 = 915 ÷ 5 = 570 ÷ 3 = 900 ÷ 2 = 786 ÷ 3 = 964 ÷ 4 = 808 ÷ 8 = 878 ÷ 2 = 744 ÷ 2 = 920 ÷ 2 = 312 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100381 ÷ 3 = 344 ÷ 2 = 490 ÷ 2 = 585 ÷ 3 = 556 ÷ 4 = 506 ÷ 2 = 920 ÷ 2 = 724 ÷ 4 = 865 ÷ 5 = 950 ÷ 5 = 416 ÷ 2 = 915 ÷ 5 = 964 ÷ 4 = 987 ÷ 7 = 306 ÷ 3 = 346 ÷ 2 = 729 ÷ 3 = 924 ÷ 6 = 644 ÷ 2 = 952 ÷ 8 = 846 ÷ 3 = 942 ÷ 2 = 999 ÷ 3 = 752 ÷ 4 = 350 ÷ 2 = 396 ÷ 3 = 924 ÷ 3 = 554 ÷ 2 = 872 ÷ 2 = 746 ÷ 2 = 870 ÷ 5 = 815 ÷ 5 = 992 ÷ 2 = 992 ÷ 8 = 836 ÷ 4 = 890 ÷ 5 = 748 ÷ 4 = 945 ÷ 5 = 357 ÷ 3 = 600 ÷ 2 = 908 ÷ 2 = 459 ÷ 3 = 488 ÷ 4 = 654 ÷ 3 = 840 ÷ 6 =204 ÷ 2 = 802 ÷ 2 = 550 ÷ 5 = 858 ÷ 6 = 775 ÷ 5 = 770 ÷ 7 = 900 ÷ 3 = 681 ÷ 3 = 660 ÷ 4 = 824 ÷ 2 = 672 ÷ 4 = 850 ÷ 5 = 728 ÷ 2 = 669 ÷ 3 = 602 ÷ 2 = 604 ÷ 2 = 670 ÷ 2 = 492 ÷ 2 = 228 ÷ 2 = 732 ÷ 6 = 880 ÷ 4 = 220 ÷ 2 = 480 ÷ 3 = 232 ÷ 2 = 861 ÷ 3 = 904 ÷ 8 = 699 ÷ 3 = 308 ÷ 2 = 240 ÷ 2 = 534 ÷ 3 = 714 ÷ 7 = 868 ÷ 4 = 444 ÷ 3 = 330 ÷ 2 = 552 ÷ 3 = 520 ÷ 2 = 848 ÷ 4 = 342 ÷ 3 = 360 ÷ 2 = 928 ÷ 8 = 548 ÷ 4 = 951 ÷ 3 = 936 ÷ 6 = 720 ÷ 3 = 612 ÷ 6 = 636 ÷ 2 = 678 ÷ 6 = 694 ÷ 2 = 700 ÷ 2 = 845 ÷ 5 = 995 ÷ 5 = 903 ÷ 3 = 828 ÷ 2 = 875 ÷ 5 = 428 ÷ 4 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100554 ÷ 2 = 462 ÷ 2 = 987 ÷ 3 = 954 ÷ 2 = 888 ÷ 2 = 908 ÷ 2 = 822 ÷ 6 = 654 ÷ 3 = 924 ÷ 2 = 304 ÷ 2 = 564 ÷ 3 = 526 ÷ 2 = 968 ÷ 4 = 840 ÷ 6 = 730 ÷ 2 = 861 ÷ 3 = 745 ÷ 5 = 952 ÷ 8 = 936 ÷ 6 = 502 ÷ 2 = 710 ÷ 2 = 840 ÷ 4 = 808 ÷ 2 = 206 ÷ 2 = 336 ÷ 3 = 360 ÷ 3 = 714 ÷ 7 = 404 ÷ 4 = 496 ÷ 4 = 820 ÷ 5 = 860 ÷ 4 = 870 ÷ 5 = 321 ÷ 3 = 327 ÷ 3 = 660 ÷ 2 = 895 ÷ 5 = 244 ÷ 2 = 908 ÷ 4 = 924 ÷ 3 = 466 ÷ 2 = 488 ÷ 2 = 390 ÷ 3 = 815 ÷ 5 = 969 ÷ 3 = 928 ÷ 8 =760 ÷ 5 = 436 ÷ 2 = 546 ÷ 2 = 868 ÷ 4 = 945 ÷ 9 = 620 ÷ 5 = 675 ÷ 3 = 818 ÷ 2 = 396 ÷ 3 = 750 ÷ 5 = 882 ÷ 6 = 948 ÷ 4 = 472 ÷ 2 = 598 ÷ 2 = 398 ÷ 2 = 434 ÷ 2 = 915 ÷ 5 = 732 ÷ 6 = 490 ÷ 2 = 816 ÷ 6 = 700 ÷ 2 = 942 ÷ 6 = 924 ÷ 6 = 488 ÷ 4 = 964 ÷ 4 = 578 ÷ 2 = 736 ÷ 4 = 620 ÷ 4 = 810 ÷ 2 = 771 ÷ 3 = 510 ÷ 5 = 252 ÷ 2 = 848 ÷ 4 = 510 ÷ 2 = 556 ÷ 4 = 428 ÷ 4 = 612 ÷ 6 = 524 ÷ 2 = 694 ÷ 2 = 530 ÷ 5 = 459 ÷ 3 = 506 ÷ 2 = 664 ÷ 2 = 420 ÷ 4 = 830 ÷ 2 = 966 ÷ 3 = 865 ÷ 5 = 330 ÷ 2 = 724 ÷ 4 = 778 ÷ 2 = 898 ÷ 2 = 810 ÷ 5 = 444 ÷ 4 = 696 ÷ 6 = 520 ÷ 4 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100350 ÷ 2 = 714 ÷ 7 = 546 ÷ 2 = 604 ÷ 4 = 544 ÷ 2 = 728 ÷ 2 = 815 ÷ 5 = 381 ÷ 3 = 396 ÷ 2 = 868 ÷ 4 = 354 ÷ 3 = 444 ÷ 3 = 808 ÷ 4 = 346 ÷ 2 = 654 ÷ 6 = 848 ÷ 2 = 330 ÷ 2 = 850 ÷ 2 = 750 ÷ 5 = 880 ÷ 5 = 824 ÷ 8 = 763 ÷ 7 = 936 ÷ 6 = 549 ÷ 3 = 945 ÷ 5 = 528 ÷ 2 = 994 ÷ 7 = 736 ÷ 4 = 603 ÷ 3 = 882 ÷ 6 = 598 ÷ 2 = 912 ÷ 8 = 520 ÷ 2 = 925 ÷ 5 = 424 ÷ 4 = 642 ÷ 2 = 328 ÷ 2 = 468 ÷ 2 = 738 ÷ 3 = 952 ÷ 8 = 696 ÷ 3 = 206 ÷ 2 = 864 ÷ 2 = 771 ÷ 3 = 954 ÷ 3 =639 ÷ 3 = 924 ÷ 6 = 429 ÷ 3 = 915 ÷ 5 = 917 ÷ 7 = 748 ÷ 4 = 882 ÷ 2 = 498 ÷ 2 = 310 ÷ 2 = 556 ÷ 4 = 490 ÷ 2 = 450 ÷ 2 = 906 ÷ 2 = 930 ÷ 5 = 666 ÷ 2 = 621 ÷ 3 = 950 ÷ 5 = 945 ÷ 9 = 459 ÷ 3 = 654 ÷ 3 = 903 ÷ 3 = 810 ÷ 2 = 284 ÷ 2 = 956 ÷ 4 = 966 ÷ 3 = 482 ÷ 2 = 908 ÷ 4 = 808 ÷ 2 = 729 ÷ 3 = 342 ÷ 3 = 496 ÷ 4 = 908 ÷ 2 = 694 ÷ 2 = 848 ÷ 4 = 722 ÷ 2 = 840 ÷ 8 = 725 ÷ 5 = 796 ÷ 4 = 545 ÷ 5 = 924 ÷ 2 = 951 ÷ 3 = 408 ÷ 3 = 550 ÷ 5 = 228 ÷ 2 = 466 ÷ 2 = 396 ÷ 3 = 990 ÷ 5 = 875 ÷ 5 = 969 ÷ 3 = 840 ÷ 6 = 976 ÷ 2 = 962 ÷ 2 = 905 ÷ 5 = 428 ÷ 4 = 488 ÷ 4 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100990 ÷ 2 = 620 ÷ 2 = 720 ÷ 6 = 984 ÷ 8 = 702 ÷ 6 = 903 ÷ 3 = 936 ÷ 6 = 870 ÷ 5 = 597 ÷ 3 = 303 ÷ 3 = 342 ÷ 3 = 912 ÷ 8 = 815 ÷ 5 = 880 ÷ 5 = 346 ÷ 2 = 306 ÷ 3 = 244 ÷ 2 = 578 ÷ 2 = 936 ÷ 4 = 654 ÷ 2 = 778 ÷ 2 = 444 ÷ 4 = 912 ÷ 3 = 840 ÷ 3 = 831 ÷ 3 = 686 ÷ 2 = 381 ÷ 3 = 524 ÷ 2 = 598 ÷ 2 = 762 ÷ 2 = 670 ÷ 2 = 924 ÷ 3 = 488 ÷ 4 = 496 ÷ 4 = 664 ÷ 2 = 690 ÷ 3 = 516 ÷ 2 = 864 ÷ 3 = 808 ÷ 2 = 946 ÷ 2 = 480 ÷ 4 = 878 ÷ 2 = 987 ÷ 3 = 922 ÷ 2 = 848 ÷ 4 =456 ÷ 3 = 994 ÷ 7 = 896 ÷ 8 = 846 ÷ 3 = 228 ÷ 2 = 850 ÷ 5 = 964 ÷ 2 = 714 ÷ 7 = 756 ÷ 7 = 930 ÷ 5 = 742 ÷ 2 = 830 ÷ 5 = 770 ÷ 5 = 861 ÷ 3 = 465 ÷ 3 = 604 ÷ 2 = 872 ÷ 4 = 428 ÷ 4 = 800 ÷ 4 = 636 ÷ 6 = 976 ÷ 2 = 520 ÷ 4 = 432 ÷ 3 = 688 ÷ 2 = 745 ÷ 5 = 950 ÷ 5 = 615 ÷ 5 = 466 ÷ 2 = 784 ÷ 2 = 830 ÷ 2 = 280 ÷ 2 = 498 ÷ 2 = 482 ÷ 2 = 868 ÷ 4 = 639 ÷ 3 = 771 ÷ 3 = 928 ÷ 8 = 254 ÷ 2 = 630 ÷ 2 = 908 ÷ 4 = 278 ÷ 2 = 748 ÷ 4 = 924 ÷ 6 = 480 ÷ 3 = 966 ÷ 3 = 915 ÷ 5 = 917 ÷ 7 = 980 ÷ 7 = 824 ÷ 8 = 908 ÷ 2 = 912 ÷ 2 = 875 ÷ 5 = 462 ÷ 2 = 614 ÷ 2 = 710 ÷ 5 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100490 ÷ 2 = 688 ÷ 2 = 780 ÷ 3 = 228 ÷ 2 = 615 ÷ 5 = 600 ÷ 5 = 588 ÷ 4 = 462 ÷ 2 = 576 ÷ 3 = 870 ÷ 5 = 846 ÷ 3 = 966 ÷ 6 = 966 ÷ 3 = 456 ÷ 2 = 594 ÷ 2 = 864 ÷ 8 = 924 ÷ 6 = 852 ÷ 4 = 950 ÷ 2 = 614 ÷ 2 = 753 ÷ 3 = 522 ÷ 2 = 936 ÷ 6 = 816 ÷ 3 = 864 ÷ 6 = 576 ÷ 2 = 810 ÷ 5 = 524 ÷ 2 = 848 ÷ 2 = 664 ÷ 2 = 752 ÷ 4 = 778 ÷ 2 = 764 ÷ 4 = 388 ÷ 2 = 364 ÷ 2 = 878 ÷ 2 = 740 ÷ 2 = 598 ÷ 2 = 428 ÷ 4 = 976 ÷ 2 = 720 ÷ 3 = 951 ÷ 3 = 650 ÷ 5 = 492 ÷ 2 = 342 ÷ 3 =912 ÷ 8 = 815 ÷ 5 = 964 ÷ 2 = 633 ÷ 3 = 926 ÷ 2 = 780 ÷ 5 = 675 ÷ 3 = 748 ÷ 4 = 970 ÷ 5 = 964 ÷ 4 = 579 ÷ 3 = 928 ÷ 8 = 696 ÷ 6 = 896 ÷ 7 = 604 ÷ 2 = 410 ÷ 2 = 465 ÷ 3 = 220 ÷ 2 = 816 ÷ 2 = 770 ÷ 5 = 466 ÷ 2 = 798 ÷ 6 = 459 ÷ 3 = 771 ÷ 3 = 800 ÷ 2 = 396 ÷ 3 = 639 ÷ 3 = 488 ÷ 4 = 620 ÷ 5 = 969 ÷ 3 = 654 ÷ 3 = 590 ÷ 2 = 516 ÷ 4 = 346 ÷ 2 = 850 ÷ 5 = 774 ÷ 3 = 630 ÷ 6 = 230 ÷ 2 = 420 ÷ 2 = 960 ÷ 4 = 604 ÷ 4 = 384 ÷ 2 = 732 ÷ 4 = 492 ÷ 4 = 861 ÷ 3 = 520 ÷ 2 = 905 ÷ 5 = 950 ÷ 5 = 694 ÷ 2 = 744 ÷ 3 = 880 ÷ 5 = 324 ÷ 2 = 952 ÷ 8 = 960 ÷ 2 = 381 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100462 ÷ 2 = 648 ÷ 4 = 815 ÷ 5 = 951 ÷ 3 = 867 ÷ 3 = 482 ÷ 2 = 396 ÷ 3 = 490 ÷ 2 = 450 ÷ 2 = 875 ÷ 5 = 330 ÷ 2 = 670 ÷ 2 = 306 ÷ 2 = 924 ÷ 6 = 306 ÷ 3 = 984 ÷ 8 = 720 ÷ 5 = 506 ÷ 2 = 432 ÷ 4 = 642 ÷ 2 = 924 ÷ 3 = 972 ÷ 4 = 724 ÷ 4 = 736 ÷ 4 = 556 ÷ 4 = 564 ÷ 4 = 428 ÷ 4 = 228 ÷ 2 = 381 ÷ 3 = 952 ÷ 8 = 850 ÷ 5 = 732 ÷ 6 = 465 ÷ 3 = 856 ÷ 2 = 696 ÷ 4 = 598 ÷ 2 = 694 ÷ 2 = 244 ÷ 2 = 459 ÷ 3 = 320 ÷ 2 = 982 ÷ 2 = 954 ÷ 2 = 921 ÷ 3 = 900 ÷ 3 = 966 ÷ 3 =492 ÷ 2 = 590 ÷ 2 = 903 ÷ 3 = 864 ÷ 6 = 620 ÷ 5 = 882 ÷ 6 = 310 ÷ 2 = 654 ÷ 2 = 876 ÷ 2 = 430 ÷ 2 = 870 ÷ 5 = 596 ÷ 2 = 346 ÷ 2 = 681 ÷ 3 = 964 ÷ 4 = 729 ÷ 3 = 714 ÷ 6 = 810 ÷ 5 = 420 ÷ 2 = 704 ÷ 2 = 668 ÷ 4 = 848 ÷ 4 = 342 ÷ 3 = 464 ÷ 4 = 976 ÷ 2 = 657 ÷ 3 = 892 ÷ 2 = 846 ÷ 3 = 771 ÷ 3 = 985 ÷ 5 = 290 ÷ 2 = 728 ÷ 2 = 968 ÷ 8 = 588 ÷ 3 = 999 ÷ 3 = 888 ÷ 8 = 904 ÷ 8 = 488 ÷ 4 = 524 ÷ 2 = 354 ÷ 3 = 206 ÷ 2 = 660 ÷ 4 = 730 ÷ 5 = 880 ÷ 8 = 690 ÷ 3 = 832 ÷ 2 = 778 ÷ 2 = 604 ÷ 4 = 654 ÷ 3 = 639 ÷ 3 = 327 ÷ 3 = 822 ÷ 2 = 612 ÷ 6 = 996 ÷ 6 = 630 ÷ 6 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100844 ÷ 4 = 680 ÷ 5 = 820 ÷ 4 = 420 ÷ 3 = 200 ÷ 2 = 924 ÷ 4 = 602 ÷ 2 = 888 ÷ 8 = 520 ÷ 2 = 228 ÷ 2 = 482 ÷ 2 = 392 ÷ 2 = 524 ÷ 4 = 681 ÷ 3 = 789 ÷ 3 = 702 ÷ 6 = 748 ÷ 4 = 506 ÷ 2 = 430 ÷ 2 = 915 ÷ 3 = 810 ÷ 5 = 550 ÷ 5 = 524 ÷ 2 = 780 ÷ 6 = 639 ÷ 3 = 462 ÷ 2 = 654 ÷ 3 = 882 ÷ 6 = 770 ÷ 5 = 908 ÷ 4 = 950 ÷ 5 = 868 ÷ 4 = 891 ÷ 3 = 694 ÷ 2 = 762 ÷ 6 = 963 ÷ 3 = 342 ÷ 3 = 745 ÷ 5 = 890 ÷ 5 = 778 ÷ 2 = 381 ÷ 3 = 945 ÷ 9 = 615 ÷ 5 = 900 ÷ 3 = 846 ÷ 3 =436 ÷ 2 = 556 ÷ 4 = 791 ÷ 7 = 924 ÷ 3 = 222 ÷ 2 = 651 ÷ 3 = 728 ÷ 4 = 707 ÷ 7 = 805 ÷ 5 = 505 ÷ 5 = 850 ÷ 5 = 600 ÷ 3 = 512 ÷ 4 = 310 ÷ 2 = 244 ÷ 2 = 736 ÷ 4 = 981 ÷ 9 = 861 ÷ 3 = 328 ÷ 2 = 459 ÷ 3 = 976 ÷ 2 = 444 ÷ 4 = 604 ÷ 2 = 945 ÷ 5 = 846 ÷ 2 = 598 ÷ 2 = 206 ÷ 2 = 994 ÷ 7 = 924 ÷ 6 = 230 ÷ 2 = 840 ÷ 3 = 396 ÷ 3 = 714 ÷ 7 = 864 ÷ 6 = 808 ÷ 2 = 813 ÷ 3 = 840 ÷ 5 = 752 ÷ 4 = 768 ÷ 2 = 638 ÷ 2 = 604 ÷ 4 = 840 ÷ 6 = 903 ÷ 7 = 908 ÷ 2 = 492 ÷ 2 = 984 ÷ 2 = 720 ÷ 2 = 832 ÷ 4 = 992 ÷ 8 = 815 ÷ 5 = 954 ÷ 9 = 956 ÷ 2 = 728 ÷ 2 = 572 ÷ 4 = 951 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100958 ÷ 2 = 639 ÷ 3 = 822 ÷ 2 = 848 ÷ 4 = 844 ÷ 2 = 470 ÷ 2 = 810 ÷ 5 = 346 ÷ 2 = 888 ÷ 8 = 840 ÷ 6 = 585 ÷ 3 = 492 ÷ 2 = 952 ÷ 8 = 750 ÷ 5 = 524 ÷ 2 = 928 ÷ 8 = 936 ÷ 6 = 732 ÷ 6 = 668 ÷ 2 = 556 ÷ 4 = 850 ÷ 5 = 908 ÷ 4 = 408 ÷ 4 = 810 ÷ 3 = 736 ÷ 4 = 964 ÷ 4 = 954 ÷ 2 = 729 ÷ 3 = 675 ÷ 3 = 428 ÷ 4 = 780 ÷ 2 = 908 ÷ 2 = 520 ÷ 4 = 744 ÷ 4 = 548 ÷ 4 = 441 ÷ 3 = 690 ÷ 3 = 783 ÷ 3 = 350 ÷ 2 = 734 ÷ 2 = 714 ÷ 7 = 588 ÷ 2 = 771 ÷ 3 = 858 ÷ 6 = 924 ÷ 3 =476 ÷ 2 = 870 ÷ 5 = 310 ÷ 2 = 498 ÷ 2 = 330 ÷ 2 = 988 ÷ 2 = 984 ÷ 4 = 462 ÷ 2 = 946 ÷ 2 = 890 ÷ 5 = 396 ÷ 3 = 884 ÷ 4 = 510 ÷ 3 = 778 ÷ 2 = 880 ÷ 5 = 810 ÷ 2 = 252 ÷ 2 = 344 ÷ 2 = 398 ÷ 2 = 540 ÷ 4 = 320 ÷ 2 = 744 ÷ 6 = 540 ÷ 2 = 956 ÷ 4 = 981 ÷ 3 = 206 ÷ 2 = 234 ÷ 2 = 750 ÷ 2 = 420 ÷ 2 = 566 ÷ 2 = 875 ÷ 5 = 488 ÷ 4 = 436 ÷ 4 = 766 ÷ 2 = 482 ÷ 2 = 752 ÷ 4 = 342 ÷ 3 = 258 ÷ 2 = 966 ÷ 3 = 748 ÷ 4 = 864 ÷ 6 = 696 ÷ 6 = 800 ÷ 5 = 728 ÷ 4 = 912 ÷ 3 = 846 ÷ 3 = 604 ÷ 2 = 944 ÷ 4 = 852 ÷ 2 = 945 ÷ 9 = 900 ÷ 4 = 842 ÷ 2 = 815 ÷ 5 = 612 ÷ 6 = 568 ÷ 2 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100312 ÷ 2 = 688 ÷ 4 = 808 ÷ 2 = 988 ÷ 2 = 564 ÷ 3 = 524 ÷ 2 = 735 ÷ 3 = 951 ÷ 3 = 917 ÷ 7 = 280 ÷ 2 = 848 ÷ 8 = 342 ÷ 3 = 900 ÷ 3 = 528 ÷ 3 = 966 ÷ 2 = 266 ÷ 2 = 206 ÷ 2 = 675 ÷ 3 = 804 ÷ 2 = 351 ÷ 3 = 360 ÷ 3 = 228 ÷ 2 = 738 ÷ 2 = 532 ÷ 2 = 390 ÷ 3 = 592 ÷ 2 = 750 ÷ 3 = 840 ÷ 4 = 610 ÷ 5 = 950 ÷ 5 = 760 ÷ 2 = 736 ÷ 4 = 996 ÷ 2 = 704 ÷ 4 = 959 ÷ 7 = 934 ÷ 2 = 220 ÷ 2 = 628 ÷ 2 = 888 ÷ 8 = 848 ÷ 4 = 854 ÷ 7 = 785 ÷ 5 = 330 ÷ 2 = 778 ÷ 2 = 654 ÷ 3 =286 ÷ 2 = 890 ÷ 5 = 770 ÷ 5 = 692 ÷ 2 = 828 ÷ 3 = 202 ÷ 2 = 708 ÷ 4 = 846 ÷ 3 = 792 ÷ 4 = 604 ÷ 4 = 786 ÷ 3 = 459 ÷ 3 = 945 ÷ 9 = 994 ÷ 7 = 490 ÷ 2 = 308 ÷ 2 = 218 ÷ 2 = 976 ÷ 2 = 728 ÷ 2 = 910 ÷ 2 = 664 ÷ 2 = 462 ÷ 2 = 905 ÷ 5 = 724 ÷ 4 = 944 ÷ 2 = 910 ÷ 5 = 644 ÷ 4 = 864 ÷ 6 = 942 ÷ 6 = 598 ÷ 2 = 924 ÷ 6 = 692 ÷ 4 = 520 ÷ 2 = 945 ÷ 5 = 872 ÷ 2 = 688 ÷ 2 = 912 ÷ 8 = 714 ÷ 7 = 882 ÷ 6 = 924 ÷ 3 = 420 ÷ 2 = 700 ÷ 2 = 896 ÷ 4 = 992 ÷ 8 = 952 ÷ 4 = 224 ÷ 2 = 310 ÷ 2 = 428 ÷ 4 = 964 ÷ 4 = 955 ÷ 5 = 471 ÷ 3 = 850 ÷ 5 = 422 ÷ 2 = 824 ÷ 8 = 639 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100550 ÷ 5 = 688 ÷ 2 = 924 ÷ 4 = 609 ÷ 3 = 888 ÷ 8 = 882 ÷ 6 = 729 ÷ 3 = 462 ÷ 2 = 848 ÷ 4 = 796 ÷ 4 = 978 ÷ 3 = 934 ÷ 2 = 728 ÷ 2 = 664 ÷ 2 = 850 ÷ 5 = 858 ÷ 3 = 852 ÷ 2 = 930 ÷ 3 = 556 ÷ 4 = 460 ÷ 4 = 905 ÷ 5 = 936 ÷ 6 = 310 ÷ 2 = 908 ÷ 2 = 520 ÷ 4 = 480 ÷ 3 = 908 ÷ 4 = 904 ÷ 8 = 630 ÷ 2 = 771 ÷ 3 = 728 ÷ 7 = 459 ÷ 3 = 576 ÷ 4 = 945 ÷ 5 = 375 ÷ 3 = 228 ÷ 2 = 915 ÷ 5 = 244 ÷ 2 = 396 ÷ 3 = 366 ÷ 3 = 884 ÷ 4 = 428 ÷ 4 = 512 ÷ 2 = 500 ÷ 2 = 964 ÷ 4 =873 ÷ 3 = 436 ÷ 2 = 846 ÷ 3 = 306 ÷ 2 = 927 ÷ 3 = 714 ÷ 7 = 585 ÷ 3 = 924 ÷ 6 = 778 ÷ 2 = 912 ÷ 8 = 506 ÷ 2 = 306 ÷ 3 = 700 ÷ 2 = 975 ÷ 5 = 876 ÷ 3 = 864 ÷ 4 = 748 ÷ 4 = 690 ÷ 2 = 288 ÷ 2 = 892 ÷ 4 = 903 ÷ 3 = 976 ÷ 2 = 344 ÷ 2 = 330 ÷ 2 = 465 ÷ 3 = 815 ÷ 5 = 786 ÷ 3 = 932 ÷ 2 = 870 ÷ 5 = 300 ÷ 2 = 910 ÷ 5 = 372 ÷ 3 = 478 ÷ 2 = 466 ÷ 2 = 875 ÷ 5 = 206 ÷ 2 = 830 ÷ 2 = 482 ÷ 2 = 444 ÷ 2 = 406 ÷ 2 = 429 ÷ 3 = 890 ÷ 5 = 220 ÷ 2 = 369 ÷ 3 = 776 ÷ 4 = 496 ÷ 4 = 942 ÷ 6 = 868 ÷ 4 = 810 ÷ 5 = 472 ÷ 2 = 945 ÷ 7 = 736 ÷ 4 = 808 ÷ 2 = 950 ÷ 5 = 770 ÷ 5 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100378 ÷ 2 = 482 ÷ 2 = 840 ÷ 8 = 909 ÷ 3 = 924 ÷ 4 = 612 ÷ 6 = 724 ÷ 4 = 436 ÷ 2 = 920 ÷ 5 = 950 ÷ 5 = 924 ÷ 6 = 890 ÷ 5 = 466 ÷ 2 = 710 ÷ 5 = 730 ÷ 5 = 910 ÷ 2 = 360 ÷ 2 = 752 ÷ 4 = 214 ÷ 2 = 342 ÷ 3 = 681 ÷ 3 = 612 ÷ 4 = 736 ÷ 4 = 920 ÷ 4 = 714 ÷ 7 = 726 ÷ 6 = 444 ÷ 2 = 942 ÷ 6 = 330 ÷ 2 = 778 ÷ 2 = 665 ÷ 5 = 798 ÷ 2 = 228 ÷ 2 = 738 ÷ 6 = 904 ÷ 8 = 545 ÷ 5 = 875 ÷ 5 = 564 ÷ 3 = 916 ÷ 4 = 945 ÷ 9 = 819 ÷ 7 = 639 ÷ 3 = 924 ÷ 3 = 675 ÷ 3 = 905 ÷ 5 =928 ÷ 8 = 750 ÷ 5 = 813 ÷ 3 = 832 ÷ 4 = 992 ÷ 8 = 792 ÷ 2 = 702 ÷ 6 = 381 ÷ 3 = 870 ÷ 5 = 775 ÷ 5 = 290 ÷ 2 = 616 ÷ 4 = 552 ÷ 3 = 230 ÷ 2 = 268 ÷ 2 = 850 ÷ 5 = 815 ÷ 5 = 830 ÷ 2 = 490 ÷ 2 = 729 ÷ 3 = 771 ÷ 3 = 808 ÷ 2 = 882 ÷ 6 = 908 ÷ 2 = 912 ÷ 8 = 542 ÷ 2 = 226 ÷ 2 = 945 ÷ 5 = 810 ÷ 2 = 298 ÷ 2 = 420 ÷ 2 = 462 ÷ 2 = 825 ÷ 5 = 492 ÷ 2 = 861 ÷ 3 = 555 ÷ 3 = 951 ÷ 3 = 680 ÷ 5 = 206 ÷ 2 = 420 ÷ 3 = 346 ÷ 2 = 520 ÷ 4 = 888 ÷ 8 = 488 ÷ 4 = 848 ÷ 4 = 484 ÷ 4 = 880 ÷ 5 = 212 ÷ 2 = 894 ÷ 6 = 459 ÷ 3 = 904 ÷ 4 = 604 ÷ 2 = 918 ÷ 6 = 927 ÷ 3 = 524 ÷ 2 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100848 ÷ 4 = 228 ÷ 2 = 868 ÷ 4 = 438 ÷ 2 = 718 ÷ 2 = 936 ÷ 6 = 627 ÷ 3 = 890 ÷ 2 = 972 ÷ 6 = 888 ÷ 8 = 840 ÷ 4 = 496 ÷ 4 = 738 ÷ 6 = 300 ÷ 2 = 836 ÷ 4 = 815 ÷ 5 = 770 ÷ 5 = 728 ÷ 2 = 448 ÷ 2 = 915 ÷ 5 = 603 ÷ 3 = 200 ÷ 2 = 750 ÷ 2 = 992 ÷ 4 = 792 ÷ 3 = 250 ÷ 2 = 888 ÷ 2 = 760 ÷ 2 = 771 ÷ 3 = 330 ÷ 2 = 310 ÷ 2 = 694 ÷ 2 = 860 ÷ 4 = 482 ÷ 2 = 220 ÷ 2 = 828 ÷ 2 = 466 ÷ 2 = 256 ÷ 2 = 346 ÷ 2 = 244 ÷ 2 = 942 ÷ 6 = 498 ÷ 2 = 342 ÷ 3 = 745 ÷ 5 = 206 ÷ 2 =856 ÷ 8 = 969 ÷ 3 = 676 ÷ 4 = 580 ÷ 4 = 905 ÷ 5 = 465 ÷ 3 = 462 ÷ 2 = 900 ÷ 3 = 483 ÷ 3 = 864 ÷ 6 = 474 ÷ 3 = 381 ÷ 3 = 808 ÷ 2 = 396 ÷ 3 = 604 ÷ 2 = 242 ÷ 2 = 954 ÷ 2 = 636 ÷ 3 = 488 ÷ 4 = 580 ÷ 5 = 688 ÷ 2 = 700 ÷ 2 = 520 ÷ 2 = 470 ÷ 2 = 516 ÷ 4 = 464 ÷ 2 = 976 ÷ 2 = 956 ÷ 4 = 620 ÷ 5 = 820 ÷ 5 = 908 ÷ 2 = 526 ÷ 2 = 732 ÷ 6 = 490 ÷ 2 = 692 ÷ 2 = 426 ÷ 3 = 492 ÷ 2 = 726 ÷ 6 = 298 ÷ 2 = 612 ÷ 6 = 332 ÷ 2 = 810 ÷ 2 = 736 ÷ 2 = 880 ÷ 5 = 684 ÷ 6 = 796 ÷ 2 = 748 ÷ 4 = 794 ÷ 2 = 736 ÷ 4 = 848 ÷ 2 = 992 ÷ 8 = 824 ÷ 4 = 306 ÷ 3 = 724 ÷ 2 = 420 ÷ 2 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100436 ÷ 2 = 360 ÷ 2 = 346 ÷ 2 = 778 ÷ 2 = 868 ÷ 4 = 754 ÷ 2 = 284 ÷ 2 = 604 ÷ 4 = 880 ÷ 5 = 452 ÷ 2 = 462 ÷ 2 = 606 ÷ 6 = 932 ÷ 4 = 840 ÷ 6 = 770 ÷ 5 = 358 ÷ 2 = 310 ÷ 2 = 429 ÷ 3 = 342 ÷ 3 = 420 ÷ 2 = 550 ÷ 5 = 908 ÷ 4 = 894 ÷ 2 = 524 ÷ 2 = 836 ÷ 4 = 652 ÷ 4 = 200 ÷ 2 = 570 ÷ 5 = 660 ÷ 2 = 396 ÷ 3 = 890 ÷ 5 = 654 ÷ 3 = 702 ÷ 6 = 810 ÷ 5 = 948 ÷ 3 = 729 ÷ 3 = 915 ÷ 5 = 872 ÷ 8 = 674 ÷ 2 = 480 ÷ 3 = 368 ÷ 2 = 496 ÷ 4 = 380 ÷ 2 = 384 ÷ 2 = 906 ÷ 2 =771 ÷ 3 = 810 ÷ 2 = 444 ÷ 4 = 294 ÷ 2 = 952 ÷ 8 = 850 ÷ 5 = 808 ÷ 2 = 936 ÷ 6 = 908 ÷ 2 = 690 ÷ 3 = 966 ÷ 3 = 875 ÷ 5 = 639 ÷ 3 = 220 ÷ 2 = 900 ÷ 3 = 484 ÷ 2 = 681 ÷ 3 = 556 ÷ 4 = 860 ÷ 4 = 938 ÷ 2 = 959 ÷ 7 = 688 ÷ 2 = 428 ÷ 4 = 786 ÷ 3 = 651 ÷ 3 = 605 ÷ 5 = 732 ÷ 6 = 726 ÷ 2 = 936 ÷ 9 = 520 ÷ 2 = 498 ÷ 2 = 488 ÷ 4 = 870 ÷ 5 = 666 ÷ 2 = 564 ÷ 2 = 973 ÷ 7 = 576 ÷ 2 = 942 ÷ 6 = 700 ÷ 2 = 381 ÷ 3 = 986 ÷ 2 = 516 ÷ 2 = 950 ÷ 5 = 748 ÷ 4 = 945 ÷ 9 = 574 ÷ 2 = 960 ÷ 4 = 492 ÷ 2 = 234 ÷ 2 = 465 ÷ 3 = 482 ÷ 2 = 315 ÷ 3 = 728 ÷ 2 = 972 ÷ 9 = 432 ÷ 3 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100438 ÷ 3 = 344 ÷ 2 = 346 ÷ 2 = 536 ÷ 2 = 416 ÷ 4 = 726 ÷ 6 = 450 ÷ 3 = 880 ÷ 5 = 420 ÷ 2 = 666 ÷ 3 = 966 ÷ 3 = 918 ÷ 9 = 488 ÷ 4 = 804 ÷ 3 = 488 ÷ 2 = 430 ÷ 2 = 864 ÷ 6 = 792 ÷ 6 = 688 ÷ 2 = 745 ÷ 5 = 444 ÷ 4 = 639 ÷ 3 = 710 ÷ 2 = 778 ÷ 2 = 788 ÷ 4 = 856 ÷ 8 = 828 ÷ 6 = 450 ÷ 2 = 945 ÷ 9 = 945 ÷ 3 = 700 ÷ 2 = 270 ÷ 2 = 672 ÷ 6 = 496 ÷ 4 = 992 ÷ 4 = 976 ÷ 2 = 612 ÷ 6 = 826 ÷ 7 = 890 ÷ 5 = 889 ÷ 7 = 410 ÷ 2 = 588 ÷ 4 = 994 ÷ 7 = 846 ÷ 3 = 912 ÷ 2 =498 ÷ 2 = 405 ÷ 3 = 492 ÷ 2 = 762 ÷ 3 = 554 ÷ 2 = 484 ÷ 4 = 675 ÷ 3 = 342 ÷ 3 = 965 ÷ 5 = 951 ÷ 3 = 330 ÷ 2 = 830 ÷ 2 = 992 ÷ 8 = 396 ÷ 3 = 721 ÷ 7 = 672 ÷ 3 = 952 ÷ 2 = 960 ÷ 3 = 955 ÷ 5 = 644 ÷ 4 = 759 ÷ 3 = 372 ÷ 2 = 924 ÷ 3 = 658 ÷ 2 = 942 ÷ 6 = 338 ÷ 2 = 408 ÷ 3 = 595 ÷ 5 = 681 ÷ 3 = 915 ÷ 5 = 750 ÷ 5 = 908 ÷ 4 = 850 ÷ 5 = 687 ÷ 3 = 694 ÷ 2 = 414 ÷ 3 = 948 ÷ 4 = 952 ÷ 8 = 936 ÷ 6 = 266 ÷ 2 = 482 ÷ 2 = 900 ÷ 3 = 810 ÷ 2 = 729 ÷ 3 = 428 ÷ 4 = 752 ÷ 4 = 567 ÷ 3 = 633 ÷ 3 = 815 ÷ 5 = 862 ÷ 2 = 508 ÷ 4 = 861 ÷ 3 = 228 ÷ 2 = 875 ÷ 5 = 964 ÷ 4 =月日姓名:练习范围:三位数除以一位分秒成绩: 数题数:100534 ÷ 3 = 310 ÷ 2 = 920 ÷ 2 = 730 ÷ 5 = 842 ÷ 2 = 816 ÷ 8 = 936 ÷ 6 = 465 ÷ 3 = 596 ÷ 4 = 736 ÷ 4 = 808 ÷ 8 = 520 ÷ 4 = 729 ÷ 3 = 868 ÷ 4 = 786 ÷ 3 = 459 ÷ 3 = 576 ÷ 4 = 664 ÷ 2 = 432 ÷ 3 = 912 ÷ 4 = 840 ÷ 2 = 312 ÷ 2 = 808 ÷ 2 = 492 ÷ 2 = 908 ÷ 4 = 812 ÷ 7 = 882 ÷ 3 = 498 ÷ 2 = 732 ÷ 6 = 824 ÷ 4 = 642 ÷ 2 = 848 ÷ 4 = 810 ÷ 5 = 330 ÷ 2 = 490 ÷ 2 = 690 ÷ 3 = 903 ÷ 3 = 928 ÷ 8 = 850 ÷ 5 = 832 ÷ 4 = 462 ÷ 2 = 381 ÷ 3 = 932 ÷ 4 = 756 ÷ 6 = 875 ÷ 5 =。
三年级数学三位数除以一位数的除法试题答案及解析
三年级数学三位数除以一位数的除法试题答案及解析1.用竖式计算,带*的要验算.428÷4=56×73=68×54=*872÷6=【答案】107;4088;3672;145 (2)【解析】根据除数是一位数除法的计算方法和乘数是两位数的计算方法进行计算,并根据要求进行验算.解答:解:(1)428÷4=107;(2)56×73=4088;(3)68×54=3672;(4)872÷6=145 (2)点评:本题主要考查了学生对整数除法和整数乘法计算方法的掌握,在计算时要细心.2.常用的时间单位有.【答案】时、分、秒.【解析】在小学阶段,学过的常用的时间单位有时、分、秒.解:常用的时间单位有(时、分、秒).故答案为:时、分、秒.【点评】此题考查了学生对常用的时间单位的掌握情况.3.按人步行每小时行驶6千米计算,填写表:时间(小时)1694213【答案】96,10,101,564,1278.【解析】(1)(4)(5)依据路程=速度×时间即可解答,(2)(3)依据时间=路程÷速度即可解答.解:(1)6×16=96(千米),(2)60÷6=10(小时),(3)606÷6=101(小时),(4)6×94=564(小时),(5)213×6=1278(千米),故答案依次为:96,10,101,564,1278.【点评】速度,时间以及路程之间数量关系是解答本题的依据.4. 595÷5的商是位数,商的最高位在位上.【答案】三,百.【解析】用被除数的百位上的数字与除数5比较,如果大于或等于5,商的最高就是百位;如果小于5商的最高位就是十位.解:595÷5=119,商是三位数,商的最高位是百位,故答案为:三,百.【点评】这类题目不需要运算出结果,只要根据被除数的最高位与除数的大小关系判断出商的位数即可.5.口算.120÷6= 30×10= 3000÷5= 300÷3=50×30= 505÷5= 960÷3= 69÷3=2000÷4= 550÷5= 90×50= 50×20=【答案】20;300;600;100;1500;101;320;23;500;110;4500;1000.【解析】根据整数乘除法运算的计算法则进行口算即可.解:120÷6=20 30×10=300 3000÷5=600 300÷3=10050×30=1500 505÷5=101 960÷3=320 69÷3=232000÷4=500 550÷5=110 90×50=4500 50×20=1000【点评】此题考查了整数乘除法运算的计算法则的运用.6.列竖式计算,带星号的要验算.◆342÷3= ◆804÷5= ◆450÷6=504÷5= 520÷4= 783÷6=【答案】114;160…4;160…4;100…4;130;130…3.【解析】根据整数除法的竖式计算方法进行解答即可.解:(1)342÷3=114;(2)804÷5=160…4;(3)450÷6=160…4;(4)504÷5=100…4;(5)520÷4=130;(6)783÷6=130…3.【点评】此题考查了整数除法的竖式计算方法及计算能力,注意除法的验算方法即可.7.花店运来194朵玫瑰花,每6朵扎一束,最多可以扎成多少束?还剩几朵?【答案】扎成32束,还剩下2朵.【解析】根据题意,可用194朵除以每束的朵数,得到的商就是可以扎成的束数,得到的余数就是剩下的朵数,列式解答即可得到答案.解:194÷6=32(束)…2(朵),答:可以扎成32束,还剩下2朵.【点评】此题主要考查的是有余数的除法的应用.8.六年级四个班同学植树情况如下:六年级(1)班25棵,六年级(2)班20棵,六年级(3)班30棵,六年级(4)班25棵.六年级四个班同学植树情况统计图:哪个班植树的棵数最多?平均每个班植多少棵树?你还什么解决方案?【答案】六(3)班植树的棵数最多;平均每个班植树25棵;也可以采用扇形统计图来解决.【解析】(1)从统计表中看出:6(1)班植树25棵,6(2)班植树20棵,6(3)班植树30棵,6(4)班植树25棵,由此得出六(3)班植树的棵数最多;(2)把四个班植树的棵数加起来再除以4求出平均每个班植树的棵数;(3)分别算出四个班植树的棵数占总数的百分之几,再画出扇形统计图即可.解:根据统计图数据观察可得知:①6(3)班植树的棵数最多;②(25+20+30+25)÷4=100÷4=25(棵);答:平均每个班植树25棵.③此题也可以采用扇形统计图来解决.25+20+30+25=100(棵)6(1)植的棵树占全部的25%,6(2)植的棵树占全部的20%,6(3)植的棵树占全部的30%,6(4)植的棵树占全部的30%,由此可绘制成扇形统计图如右图:【点评】此题主要考查了从条形统计图中获取知识及绘制统计图的方法.9.小明从家出发,经过邮局到少年宫,一共用了9分.(1)小明平均每分走多少米?(2)如果照这样的速度直接从家到少年宫,只要7分.小明直接从家去少年宫的路程是多少米?【答案】平均每分走65米;路程是455米.【解析】(1)先从图中得到小明从家出发,经过邮局到少年宫的路程,再根据速度=路程÷时间列式计算即可;(2)小明直接从家去少年宫的路程=小明的速度×所需的时间.解:(1)(335+250)÷9,=585÷9,=65(米).答:小明平均每分走65米;(2)65×7=455(米).答:小明直接从家去少年宫的路程是455米.【点评】考查了简单的行程问题,本题要善于观察图形,熟练掌握路程,速度,时间之间的关系.10.王老师带领50个学生去参加联欢会,每车坐8人,至少要租()辆车.A.7B.8C.6D.5【答案】A【解析】王老师和50个学生,一共是51人,每车坐8人,求需要租车的数量,就是求51里面有几个8,用除法求解即可.解:(50+1)÷8=51÷8=6(辆)…3(人)余下的3人还需要增加1辆车6+1=7(辆)答:至少要租7辆车.故选:A.【点评】解决本题根据除法的包含意义进行求解,注意余数无论多少都需要增加1辆车.11. 2400是3的倍,是4的倍,又是6的倍.【答案】800,600,400.【解析】求一个数是另一个数的几倍用除法进行解答,列式计算即可.解:2400÷3=8002400÷4=6002400÷6=400答:2400是3的800倍,是4的600倍,又是6的400倍.故答案为:800,600,400.【点评】本题考查了倍数问题,求一个数是另一个数的几分之几用除法进行解答.12.一个数除以7,商是29,余数最大是,当余数最大时,被除数是.【答案】6,209.【解析】根据在有余数的除法中,余数总比除数小,即余数最大为:除数﹣1,当余数最大时,被除数最大,进而根据“被除数=商×除数+余数”解答即可.解:余数最大为:7﹣1=6,7×29+6=203+6=209;答:余数最大是6,当余数最大时,被除数是 209;故答案为:6,209.【点评】解答此题的关键:根据在有余数的除法中,余数总比除数小,得出余数最大为:除数﹣1,然后被除数、除数、商和余数四个量之间的关系进行解答即可.13. 624÷2÷3=624÷(2×3).(判断对错)【答案】√【解析】根据除法性质:连续除以两个数等于除以这两个数的积;进行计算.解:624÷2÷3=624÷(2×3)=624÷6=104故答案为:√.【点评】完成本题要注意分析式中数据,运用合适的简便方法计算.14. 350里面有 5;540是3的倍.【答案】70个,180.【解析】(1)求350里面有几个5,用350除以5即可;(2)求540是3的几倍,用540除以3即可.解:(1)350÷5=70(2)540÷3=180答:350里面有705;540是3的180倍.故答案为:70个,180.【点评】本题根据除法的包含意义,以及两个数的倍数关系列出除法算式求解.15.□□□÷7余数最大是()A.9B.7C.6D.5【答案】C【解析】根据在有余数的除法中,余数总比除数小,即余数最大为:除数﹣1;进而解答即可.解:7﹣1=6故选:C.【点评】解答此题应明确:在有余数的除法中,余数最大为:除数﹣1.16.4□6÷4,要使商的中间有0,且没有余数,□里可填.【答案】1或3【解析】本题根据整数除法的运算法则分析填空即可.解:4□6÷4,要使商的中间有0,且没有余数,则□<4,且□6能被4整除.所以□中可填1或3.故答案为:1或3.【点评】整数除法的法则:(1)从被除数的高位起,先看除数有几位,再用除数试除被除数的前几位,如果它比除数小,再试除多一位数;(2)除到被除数的哪一位,就在那一位上面写上商;(3)每次除后余下的数必须比除数小.17.小红晚上做作业,从6:45开始做到6:53,如果她一共要做104道口算题,平均每分钟做多少道?【答案】13道.【解析】先求出从6:45开始做到6:53经过的时间是6时53分﹣6时45分=8分,用做的口算题道数104除以分钟数8即可解答问题.解:6时53分﹣6时45分=8分104÷8=13(道)答:平均每分钟做13道.【点评】先根据减法的意义,求出从6:45开始做到6:53所用的时间是完成本题的关键.18.一个数除以7,商是101,余数是4,这个数是.【答案】711【解析】求被除数,根据:被除数=商×除数+余数,解答即可.解:101×7+4,=707+4,=711;故答案为:711.【点评】求这个数实际是求被除数,明确被除数与除数,商和余数的关系则是解决问题的关键.19. 376÷4的商是位数,商的最高位是位.【答案】两,十.【解析】在除法算式376÷4中,除数是4,被除数的最高位是3,4>3,不够除,所以应从被除数的十位除起,商从被除数的十位写起,所以商的最高数是十位.解:由于除数4大于被除数的最高位3,所以应从被除数的十位除起,商从被除数的十位写起,则:376÷4的商是两位数,商的最高位是十位.故答案为:两,十.【点评】完成本题的依据为整数除法的运算法则:先从被除数的高位除起,除数是几位数,就看被除数的前几位;如果不够除,就多看一位,除到被除数的哪一位,商就写在哪一位的上面.如果哪一位上不够商1,要补“0”占位.每次除得的余数要小于除数.20.下表是三(2)班环保小组同学三月份收集的废旧矿泉水瓶的数量.)收集的废旧矿泉水瓶数量最多.(2)收集的数量最多的同学比数量最少的同学多个.(3)环保小组平均每人收集了个.【答案】张华,18,36.【解析】(1)把6个人收集的废旧矿泉水瓶数量相比,即可得出结论;(2)求收集的数量最多的同学比数量最少的同学多多少个,用减法解答即可;(3)求平均每人收集了多少个,先求出6人一共收集了多少个,然后根据:总数量÷人数=平均每人收集的数量.解:(1)因为45>40>39>35>30>27,所以张华收集的数量最多,李红收集的数量最少;(2)45﹣27=18(个);答:收集的数量最多的同学比数量最少的同学多18个;(3)(45+40+39+35+30+27)÷6,=216÷6,=36(个);答:环保小组平均每人收集了36个;故答案为:张华,18,36.【点评】本题借助统计表考查了学生的观察、分析的能力及运用信息计算的能力.21.被除数末尾有0,商的末尾不一定有0..(判断对错)【答案】√【解析】此类问题可以利用举例子的方法进行判断.解:被除数末尾有零,不能确定商的末尾就有零,举例1000÷25=40,被除数末尾有0,商的末尾也有0;100÷25=4,被除数末尾有0,而商的末尾没有0.所以被除数末尾有0,商的末尾不一定有0,原题说法正确;故答案为:√.【点评】对于这种判断类型的题目,可以通过举例进行说明.22.直接写得数.70×8= 60÷3= 600×9=40÷4= 23×3= 62÷2=400÷5= 15×6= 12×7=【答案】70×8=560 60÷3=20 600×9=540040÷4=10 23×3=69 62÷2=31400÷5=80 15×6=90 12×7=84【解析】根据整数乘除法的计算方法进行解答即可.解:70×8=560 60÷3=20 600×9=540040÷4=10 23×3=69 62÷2=31400÷5=80 15×6=90 12×7=84【点评】此题考查了整数乘除法的口算能力.23.商中间有0的算式是()A.545÷5 B.456÷4 C.857÷7【答案】A【解析】根据除数是一位数除法的计算方法知:除到哪一位不够商一就商0.如被除数的左起第一位能被除数整除,且左起第二位小于除数,商的中间有0.据此解答.解:A.545÷5,被除数最高位的5能被除数5整除,且4小于5,所以商的中间有0.B.456÷4,被除数最高位的4能被除数2整除,但5大于2,所以商的中间没有0.C.857÷7,被除数最高位的8不能被除数7整除,所以商的中间没有0.故选:A.【点评】本题主要考查了学生根据除数是一位数除法的计算方法解答问题的能力.24.一个三位数除以一个一位数,商不一定是三位数..(判断对错)【答案】√【解析】三位数除以一位数,先用百位上的数字去除以一位数,看够不够除,就是说百位上的数字和一位数数字比较,如果比一位数大或相等就够除,商商在百位上,就是一个三位数;如果百位上的数字比一位数小,就要用百位和十位的数组成一个两位数去除以一位数,商要商在十位上,就是一个两位数.所以一个三位数除以一个一位数,商可能是3位数,也可能是2位数.故答案正确解:被除数百位上的数字和一位数比较大小,百位上的数字比一位数大或相等商就是三位数,比一位数小,商就是两位数.故答案为:√.【点评】也可以多写几个三位除以一位数试算一下.25. 8410÷7,商的末尾一定有一个0..(判断对错)【答案】×【解析】因为8410不能被7整数,根据除法的计算法则可知,商的末尾一定不是零.解:因为8410不能被7整数,所以,8410÷7商的末尾一定不是零.故答案为:×.【点评】商的末尾有零,如果是整除,则被除数的末尾一定有零.26.学校食堂运来一批大米,吃了276千克,剩下的是吃了的3倍,?(先提问,再解答.)【答案】原来有多少千克大米【解析】问题:原来有多少千克大米?解答:根据“剩下的是吃了的3倍”,运用乘法求出剩下的量,再加上吃了276千克,即为原来有多少千克大米.解:问题:原来有多少千克大米?276×3+276=828+276=1104(千克)答:原来有1104千克大米.故答案为:原来有多少千克大米.【点评】此题考查已知两个数量,主要求两个数量之间的关系,分两种情况去提问题:和差关系,倍比关系.27.表是食堂一周内买的部分食品的统计.请把表格填写完整.【解析】根据总价÷单价=数量,代入数据解答即可.解:728÷8=91810÷7=308÷9=故答案为:品名单价(元÷千克)数量(千克)金额(元)【点评】本题主要考查了总价、单价和数量之间的关系的理解应用情况.28.列式计算.(1)600与180的差除以7,商是多少?(2)709减去33乘16的积,差是多少?【答案】60;181【解析】(1)先用600减去180求出差,再用求出的差除以7即可;(2)先用33乘上16求出积,再用709减去求出的积即可.解:(1)(600﹣180)÷7=420÷7=60答:商是60.(2)709﹣33×16=709﹣528=181答:差是181.【点评】这类型的题目要分清楚数量之间的关系,先求什么再求什么,找清列式的顺序,列出算式求解.29. 24个十除以3等于()个十,就是()。
三年级数学两三位数乘一位数的乘法试题答案及解析
三年级数学两三位数乘一位数的乘法试题答案及解析1.估算296×4,可以把296估成,因此所得的积约等于.【答案】300,1200.【解析】在估算时,要根据四舍五入法,将296看成300,4不变,再根据乘法口诀计算.解答:解:估算296×4时,先把296看做300,则297×4≈300×4=1200故答案为:300,1200.点评:此题考查了整数的估算方法,注意要把相乘的多位数因数看成最接近它的整十数或整百数.2.直接写得数【解析】根据这个数加法、乘法的计算方法进行解答即可.解答:解:3.一个三位数乘1,所得的积还是三位数..(判断对错)【答案】正确.【解析】根据题意,由任何数乘1还得原数,进一步解答即可.解答:解:根据题意,任何数乘1还得原数可得:一个三位数乘1,所得的积还是原来的数,也就是还是这个三位数.所以,一个三位数乘1,所得的积还是三位数是正确的.故答案为:正确.点评:本题主要考查任何数乘1还得原数,然后再根据题意进一步解答即可.4.(2014秋•平原县期末)最小的三位数乘最大一位数,积是三位数.….【答案】√.【解析】最小的三位数是100,最大一位数是9,100×9=900.解答:解:最小的三位数是100,最大一位数是9,100×9=900,积是三位数,所以最小的三位数乘最大一位数,积是三位数;故答案为:√.点评:解决此题关键是用最小的三位数乘最大的一位数.5. 1008×6的积的中间有两个0..(判断对错)【答案】×.【解析】根据整数乘法的计算方法,求出1008×6的积,然后再进一步解答.解答:解:1008×6=6048;6048的中间有1个0;所以,1008×6的积的中间有1个0.故答案为:×.点评:求两个数的积的中间0的个数,可以先求出它们的乘积,然后再进一步解答.6.笔算下面各题.(△要验算)【答案】968;462;3200;504;【解析】首先根据整数加减乘法的运算方法列竖式计算,然后根据加减的互逆关系验算即可.解答:解:589+379=968验算:900﹣438=462460×7=3220720﹣216=504验算;点评:此题主要考查了整数加减乘法的运算方法,以及根据加减的互逆关系验算的能力,要熟练掌握.7. 200个同学乘4辆汽车去郊游.前3辆车各坐52个同学,第4辆车要坐多少个同学?【答案】44个【解析】前3辆车各坐52个同学,根据乘法的意义,前3辆车共坐了52×3=156个同学,然后根据减法的意义,用学生总数减去前3辆车坐的学生数,即得第4辆车坐多少个同学.解:200﹣52×3=200﹣156=44(个);答:第4辆车要坐44个同学.【点评】首先根据乘法的意义求出前3辆车坐多少个学生是完成本题的关键.8. 435×()时,积一定是四位数.A.0 B.1 C.3【答案】C【解析】解:根据题意可得;435×0=0;435×1=435;435×3=1305;由以上可得,435×3时,积一定是四位数.故选:C.9.估算【解析】解:10.列竖式计算【答案】1022;980;524;1540;1515;3208;1950;1200;6000;28800;7200;6600【解析】解:146×7=1022245×4=980131×4=524308×5=1540505×3=1515802×4=3208390×5=1950240×5=1200750×8=60003200×9=288002400×3=72002200×3=660011.一位数(不为0)乘以一个三位数,积可能是位,也可能是位数.【答案】3,4.【解析】我们运用举例的方法进行解答,举出2个例子,然后再进行填空.解:(1)123×2=246,积的位数是3位.123×9═1107,积的位数是4位.故答案为:3,4.【点评】本题运用举例的方法进行解答即可.12.每千克梨子5元,小红买了49千克梨子,小红大约用了多少元?【答案】245元.【解析】根据单价×数量=总价,列式解答.解:5×49=245(元),答:小红大约用了245元.【点评】此题主要根据单价、数量、总价三者之间的关系解决问题.13.甲、乙、丙三个数的平均数是172,这三个数的和是()A.516 B.561 C.615【答案】A【解析】根据平均数的意义及求法,这三个数之和除以3就是这三个数的平均数,用这三个数的平均数乘3就是这三个数的总和.解:172×3=516答:这三个数的和是516.故选:A.【点评】此题是考查平均数的意义及求法.这三个数的平均数乘3就是这三个数的总和.14.直接写出得数.36+42= 46﹣15= 56×20= 1000﹣600= 24÷6=74﹣36= 60+34= 80×6= 700+200= 40÷8=【答案】36+42=78 46﹣15=31 56×20=1120 1000﹣600=400 24÷6=474﹣36=38 60+34=94 80×6=480 700+200=900 40÷8=5【解析】根据整数加减乘除法运算的计算法则计算即可求解.解:36+42=78 46﹣15=31 56×20=1120 1000﹣600=400 24÷6=474﹣36=38 60+34=94 80×6=480 700+200=900 40÷8=5【点评】考查了整数加减乘除法运算,关键是熟练掌握计算法则正确进行计算.15. 320×5的末尾有1个0..(判断对错)【答案】×【解析】运出320乘5的积,再判断.解:320×5=1600;1600的末尾有2个0;故答案为:×.【点评】由于第二个因数是5,第一个因数是320,0的前边是2,偶数,偶数与5相乘积的末尾也是0,所以这个算式的末尾0的数量需要计算出积才能判断.16.直接写出得数.21×3= 90÷3= 16×3= 50×6=7×5+6= 700×4= 0×34= 280÷4=41﹣24= 9×4+8= 7×600= 16×6=13×7= 45×0= 8×6+4= 42×2=200÷5= 0+88= 450÷5= 5×5+3=【答案】21×3=63 90÷3=30 16×3=48 50×6=3007×5+6=41 700×4=2800 0×34=0 280÷4=7041﹣24=17 9×4+8=44 7×600=4200 16×6=9613×7=91 45×0=0 8×6+4=52 42×2=84200÷5=40 0+88=88 450÷5=90 5×5+3=28【解析】根据整数加减乘除法的计算方法进行计算.解:21×3=63 90÷3=30 16×3=48 50×6=3007×5+6=41 700×4=2800 0×34=0 280÷4=7041﹣24=17 9×4+8=44 7×600=4200 16×6=9613×7=91 45×0=0 8×6+4=52 42×2=84200÷5=40 0+88=88 450÷5=90 5×5+3=28【点评】口算时,注意运算符号和数据,然后再进一步计算.17.用竖式计算,带★的要验算.6×58=5×360=803×7=★398÷3=【答案】6×58=3485×360=1800803×7=5621★398÷3=132 (2)【解析】根据整数乘除法的计算方法进行计算,注意验算方法的选择.解:6×58=3485×360=1800803×7=5621★398÷3=132 (2)验算:【点评】考查了整数乘除法的笔算,根据各自的计算方法进行计算,注意验算方法的选择.18.竖式计算238+75=验算:407﹣168=验算:60÷8=156×9=308×7=【答案】238+75=313407﹣168=23960÷8=7 (4)156×9=1404308×7=2156【解析】根据整数加减乘除法运算的计算法则计算即可求解.注意题目的答题要求.解:238+75=313407﹣168=23960÷8=7 (4)156×9=1404308×7=2156【点评】考查了整数加减乘除法运算,关键是熟练掌握计算法则正确进行计算.19.白鸽每分钟飞行618米,天鹅飞行的速度是白鸽的6倍,天鹅每分钟大约飞行多少米?【答案】3600米【解析】根据题意可知,白鸽飞行的速度×6倍=天鹅飞行的速度,列出乘法算式618×6计算即可求解.解:618×6≈3600(米)答:天鹅每分钟大约飞行3600米.【点评】求一个数的几倍是多少,用乘法计算.20.□=△=○=.【答案】1,7,2.【解析】根据整数乘法笔算的计算法则进行解答.解:个位上:4×3=12,在个位上写2,向十位进1,所以○=2;十位上:2×3+1=7,所以△=7;百位上:7×3=21,在百位上写1,向千位进2,所以□=1;千位上:1×3+2=5;由以上可得:.故答案为:1,7,2.【点评】考查了整数乘法的笔算,根据其计算方法进行计算,注意进位.21.三(1)班有4个人参加学校运动会的4×100接力赛,共有种安排的方法.【答案】24.【解析】4×100接力赛共有4棒,需要4个人参加,第一棒有4种选择,第二棒有3种选择,第三棒有2种选择,最后一棒只有1种选择,根据乘法原理可得共有4×3×2×1=24(种)安排的方法.解:4×3×2×1=24(种)答:共有24种安排的方法.故答案为:24.【点评】本题需要用乘法原理去考虑问题即做一件事情,完成它需要分成n个步骤,做第一步有M1种不同的方法,做第二步有M2种不同的方法,…,做第n步有Mn种不同的方法,那么完成这件事就有M1×M2×…×Mn种不同的方法.22.小明每分钟能录86个字,小明8分钟大约能录个字.【答案】720.【解析】每分钟能录86个字,根据乘法的意义可得8分钟能录86×8个字,要求8分钟大约能录多少个字,根据整数乘法的估算方法,把86看作90进行计算即可.解:86×8≈90×8=720(字)答:小明8分钟大约能录720个字.故答案为:720.【点评】此题考查了乘法意义及乘法估算方法的运用.23. 125×8的积的末尾有()个0.A.1B.2C.3D.4【答案】C【解析】要求125×8的积的末尾有几个0,要先算出积,然后再数出积的末尾有几个0,进而选择.解:因为125×8=1000,所以125×8的积的末尾有3个0;故选:C.【点评】此题考查整数的乘法及应用,要求积的末尾有几个0,要先算出得数,再确定积末尾0的个数.24. 800×5的积末尾一共有个0.【答案】3【解析】计算出800×5的积,根据积末尾0的个数进行判断.解:800×5=4000积是4000,末尾有3个0.故答案为:3.【点评】解决本题不能直接根据因数末尾0的个数进行判断,需要计算出结果再判断.25.下面的竖式计算中正确的是()A. B. C.【答案】C【解析】根据整数乘法的计算法则,每个选项去分析解答.解:A、个位上4×6=24,在个位上写4,向十位进2,原题直接在积上写24,所以错;B、十位上3×4=12,再加上个位上的进位2是14,应在十位上写4,向百位进1,原题用3加上进位2等于5,所以错;C、个位上4×3=12,在个位上写2向十位进1,十位上2×3=6,加上进位1是7,所以,24×3=72,此题对.故选:C.【点评】考查了整数乘法的笔算,根据其计算方法进行计算.26. 250×8积的末尾共2个0..(判断对错)【答案】×【解析】根据整数乘法的计算方法,求出250×8的积,然后再进一步解答.解:250×8=2000;2000的末尾有3个0;所以,250×8的积的末尾共有3个0.故答案为:×.【点评】本题关键是求出这两个数的乘积,然后再进一步判断.27. 410×2= 32÷6= 25×4= 190+40=3+28= 8×125= 270+170= 600﹣360=13×6= 15×3+30= 930﹣760= 211×0=+= 1﹣= 789﹣104≈ 19×5=501+19= 16×5= 28÷4×8= 8×196≈+= ﹣= (60﹣25)÷5= 40﹣10×2=【答案】410×2=820 32÷6=5…2 25×4=100 190+40=2303+28=31 8×125=1000 270+170=440 600﹣360=24013×6=78 15×3+30= 930﹣760=170 211×0=0+=1 1﹣= 789﹣104≈690 19×5=95501+19=520 16×5=80 28÷4×8=56 8×196≈1600+=﹣=(60﹣25)÷5=7 40﹣10×2=20【解析】直接写出得数的题目大都数值较小,或直接应用表内口诀计算,或常用见的积积等于整数十、整数百、整千…的数,或运算定律的应用,或有规律,或估算等,要根据具体题目具体对待.解:直接写出得数:410×2=820 32÷6=5…2 25×4=100 190+40=2303+28=31 8×125=1000 270+170=440 600﹣360=24013×6=78 15×3+30= 930﹣760=170 211×0=0+=1 1﹣= 789﹣104≈690 19×5=95501+19=520 16×5=80 28÷4×8=56 8×196≈1600+=﹣=(60﹣25)÷5=7 40﹣10×2=20【点评】直接写出得数的题目,实际上就是口算题,口算是笔算的基础,具有用时少、容量大、形式活、速度快的特点,是训练思维敏捷性的良好手段,注意运算定律的灵活应用.28.三位数乘一位数的积可能是位数,也可能是位数.【答案】四,三【解析】先用最大的三位数乘最大的一位数,求出积,看是几位数;再用最小的三位数乘0除外的最小的一位数,求出积,看是几位数;三位数乘一位数的积都在这个范围之内.解:999×9=8991;8991是四位数;100×1=100;100是三位数;所以三位数乘一位数的积可能是四位数,也可能是三位数.故答案为:四,三.【点评】本题采用极值法求出积的取值范围,求出最大的积和最小的积,进而求解.29.最小的两位数乘8得,最大的三位数乘2得.【答案】80,1998.【解析】最小的两位数是10,最大的三位数是999,分别求出积解答即可.解:10×8=80;999×2=1998;答:最小的两位数乘8得80,最大的三位数乘2得1998.故答案为:80,1998.【点评】本题主要明白最小两的位数,最大的三位数分别是10,999.30. 2×86的积是位数;532×2的积是位数.【答案】三,四.【解析】根据整数乘法的计算方法,分别求出2×86与532×2的积,然后再进一步解答.解:2×86=172;172是三位数;所以,2×86的积是三位数;532×2=1064;1064是四位数;所以,532×2的积是四位数.故答案为:三,四.【点评】求两个数的积的位数,可以先求出它们的乘积,然后再进一步解答.。