小学数学1000以内乘法1000题(2)
二年级乘除法口诀专项练习1000题.docx
100题班级：姓名：用时：分钟得分：一21 士7 =8 士8 = 3X 7= 4 士1 = 32 - 8 =5X 7 = 7X 1 = 4X 4= 10-5 = 14 士2 =30 - 5 = 48 - 8 = 8X 5= 3X 1 = 12 士2 =9-3 = 25 士5 = 56 - 8 = 1X 4= 7X 7=48 - 8 = 18-3 = 4X 8= 1X 7= 7X 6=10 士2 = 1 X 8 = 6 士2= 4X 1 = 21 士3 =1 X 6 = 2X 6 = 8X 3= 2X 5= 32 - 8 =3-3 = 20 - 5 = 2X 7= 25 士5 = 4X 7=42 士6 = 15-3 = 6X 7= 1X 2= 16 士4 =8X 2 = 30 - 5 = 2X 4= 8X 4= 5X 3=4X 3 = 18-6 = 1X 4= 16 士2 = 12 士4 =6X 5 = 8X 1 = 2X 8= 1 士1 = 8 士8=6X 4 = 7X 5 = 6 士2= 3X 5=3X 3=35 士5 = 5X 8 = 15 士5 = 6X 2= 4 士1 =7X 8 = 8X 3 = 7X 6= 4X 6= 3X 2=12 士6 = 64 - 8 = 18-6 = 12 士3 = 7 士1 =2X 1 = 48 - 6 = 18-3 = 20 士4 = 6X 1 =2 士1 = 9-3 = 36 - 6 = 1X 1 = 56 - 8 =1 X 5 = 6X 3 = 7X 1 = 3X 7= 21 士7 =6 士6 = 30 - 6 = 6X 1 = 24 士6 = 20-5 =—R 11 J100题班级：_____ 姓名：—用时：____ 分钟得分：_ 3-1 = 7X3 = 7士7= 42-7 = 6-1 =4X8 = 2X2 = 24-8 = 8士2= 6士3= 2X7 = 8 + 4 = 40-5 = 5X4= 10+2 = 56-7 = 5X2 = 8X 7=6-1 = 4+ 4=2士2 = 56-7 = 32-4 = 16-8 = 40-8 = 3X3 = 5X6 = 40-8 = 7X5= 3X6=7X8 = 2X1 = 42-6 = 8X 8= 16 士4 = 6X4 = 2X4 = 7-1 = 3X4= 1X2= 30-6 = 4X6 = 35-7 = 7士7= 24-3 = 2X8 = 1 +1 = 24 士4 = 1X6= 4X5= 28-4 = 5 + 5 = 4X 2=5X2= 5士5= 6X2 = 40 + 5 = 35-7 = 2X3= 4X 7=7X2 = 24 + 8 = 3士1 = 8X 6= 5X5= 64士8 = 4 — 2 = 2士2= 8-1 = 28-7 = 20 士4 = 15-5 = 7X4= 5X 1 = 12-6 = 4 士4 = 12 + 4 = 8X5= 12-2 = 5X4= 16-2 = 14 + 7 = 1X3= 6X 6= 8X2=5X7 = 48 + 6 = 3X 5= 49-7 = 3X6=1X8 = 3X8 = 5X5= 7X3= 7X4= 35-5 = 3X1 = 6X 8= 6X 7= 5 士1 =100题班级：姓名：用时：分钟得分：一8X 4 = 3 X 5 =15-3 = 6X 1 = 1X 6=1 X 4 = 2X 6 = 30-5 = 8X 8= 48 - 8 =8X 6 = 48 - 8 = 35 士7 = 4 士1 = 32 士4 =8 士8 = 9-3 = 6X 5= 8X 3= 1X 5=42 士6 = 2X 4 = 3X 7= 4+ 2= 48 - 6 =6 士1 = 14 士2 = 28 士7 =7X 1 = 12 士2 =15 士5 = 12 士4 = 2X 7= 32 - 8 = 8X 3=4X 2 = 49 - 7 = 12 士2 = 1X 2= 64 - 8 =21 士3 = 7X 6 = 2 士2= 24 士6 = 3- 3=5X 5 = 6 士2 = 8X 2= 4X 1 = 40-5 =5X 8 = 5X 7 = 7X 8= 8 士8= 10-5 =3 X 5 =24 士8 = 42 士6 = 7 士7= 4X 3=1 士1 = 6X2 = 3X 6= 6X 4= 3X 1 =1 X 8 = 3X2 = 36 - 6 = 56 - 8 = 2 士1 =56 士7 =3X 8 = 21 士7 = 7X 2= 5X 2=3X 1 = 24 士3 = 16-8 = 2 士2= 30-5 =12 士6 = 32 - 8 = 20-5 = 2X 3= 8X 5=8X 5 = 7X 3 = 5X 7= 8 士2= 2X 5=4 士4 = 2X 4 = 4X 6= 4X 8= 1X 1 =5X 6 = 18-6 = 7X 4= 25 士5 = 4X 7=—R 31 J100题班级：姓名：用时：分钟得分：一3X 6 = 16 士2 = 2X 8= 30-6 = 7X 6=18-3= 3X 7 = 12 士3 = 35 士7 = 2X 1 =5X 4 =5X 1 = 5 士5= 5X 5= 48 - 6 =6X 7 =6X 1 = 7X 3= 56 - 8 = 20 士4 =20 士4 = 6X 3 = 4X 7= 7 士7= 40-8 =21 士7 = 4X 4 = 4 士1 = 16 士4 = 28 士4 =42 士7 = 4X 8 = 12 士6 = 35 士5 = 16 士2 =30 - 6 = 3X 3 = 25 士5 = 1 士1 = 24 士4 =12 士4 = 6X 7 =7X 5= 1X 4= 64 - 8 =5X 2 = 1 X 8 = 8X 2= 6X 2= 8X 1 =9-3 = 40 - 8 = 6 士6= 1X 6= 1X 7=5 士1 = 7X 8 = 2X 8= 7X 5= 6X 6=2X 2 = 4X 5 = 10 士2 = 8 士4= 5X 4=7X 4 = 2X 1 = 5 士5= 6 士2= 24 士8 =1 X2 = 18-6 = 56 士7 = 6X 4= 2X 7=6 士1 = 20 - 5 = 1X 3= 14 士7 = 7 士1 =3X 4 = 4 士4 = 3 士1 = 40-5 = 4X 6=18-3 = 7X 1 = 16 士4 = 5X 3= 10 士2 =3 士1 = 7X 7 = 8X 7= 8 士1 = 3X 3=7 士1 = 35 士5 = 6- 3= 15 士5 = 6X 8=—R 41 J100题班级：_____ 姓名：—用时：____ 分钟得分：30 - 6 = 56 士8 = 1X 7= 7X 4= 48 - 8 = 6X 2 =5X 2 = 4X 6= 6X 2= 16 士2 = 1 士1 = 3X 1 = 28 士7 =7X 1 = 7X 7= 32 - 8 = 4 + 2 = 6X 1 = 8X 3= 2X 6= 56 士7 =20 士4 = 2 士2= 5X 1 = 28 士4 =6 士2 = 40 - 5 = 4X 4= 10-5 = 2 士1 =7 士1 = 7X 3 = 21 士7 =9- 3= 30-5 = 7X 1 = 15 士5 = 7X 8= 3 士1 = 8X 7= 15 士3 = 49 - 7 = 2X 8= 3X 7= 5X 6= 9-3 = 7X 5 = 21 士7 = 4 士4= 12 士2 = 3X 6 = 16 士2 = 32 - 8 = 8 士1 = 16-8 = 3X 4 =16 士4 = 1X 6= 4X 5= 18-6 = 8X 2 = 8 士8 = 6 士1 = 6X 3= 56 士7 = 14 士7 = 5 X 3 = 3X 2= 2X 8= 12 士4 = 4 士4 = 6X 7 =7X 5= 1X 2= 6 士6= 25 士5 = 3X 7 = 6 士2= 7 士7= 24 士8 = 40 - 8 = 4X 1 = 6X 4= 30-6 = 2X 7= 6-3 = 40 - 8 = 24 士6 = 6X 1 = 1X 8= 6X 6 = 5X 8 = 4X 6= 18-3 = 10 士2 = 35 士7 = 25 士5 = 5X 7= 5 士5= 10 士2 =100题班级：姓名：用时：分钟得分：一8X 5 = 42 士6 = 6X 5= 21 士3 = 1X 4=14 士2 =7 士1 = 1X 3= 7X 6= 64 - 8 =3X 6 = 1 X 2 = 3 士1 = 5X 4= 8 士2=8X 4 = 8X 6 = 35 士7 = 36 - 6 = 3X 5=5X 4 = 1X 1 = 4X 3= 6X 4= 24 士4 =12 士2 = 48 - 6 = 5X 5= 18-3 = 7X 8=12 士4 = 8 士8 = 24 士3 = 42 士7 = 24 士8 =1 X 6 = 7X2 = 42 士6 = 1 士1 = 8X 2=4X 7 =35 士5 = 20-5 = 7X 4= 56 - 8 =4 士1 = 20 士4 = 2X 7= 4 士1 = 6X 7=48 - 6 = 35 士5 = 4X 8= 2X 1 = 15 士5 =8X 3 = 1 X 5 = 3X 3= 8X 5= 5 士5=12 士6 = 32 士4 = 20-5 = 2X 1 = 2X 3=3 X 5 =18-6 = 5X 2= 1X 8= 1X 4=7X 3 = 3-3 = 2X 2= 30-5 = 40-5 =16 士4 = 6 士1 = 5X 5= 3X 3= 2X 5=2X 4 = 3X 8 = 7 士7= 4X 2= 48 - 8 =2X 4 = 3X 1 = 8X 1 = 12 士6 = 2 士2=4X 7 = 6X 8 = 5X 7= 8 士4= 7X 6=64 - 8 = 4X 8 = 8X 8= 12 士3 = 5 士1 =—R 61 J100题班级：_____ 姓名：—用时： ____ 分钟得分：_ 16-2 = 6-1 = 20 士4 = 8X 8= 4X 1 = 4 + 2 = 3X8 = 5X 2=4X 3= 56-7 = 3X1 = 20 士4 = 6X4= 3X2= 3X 3= 6X1 = 10-2 = 1 士1 = 4X 7=2X 7= 18-3= 4X8 = 7X 1 = 35-7 = 1X6= 48 士6 = 9士3 = 2X 1 = 5 士1 = 5X2= 4 士1 = 6-1 = 8X2= 28-7 = 30-6 = 56-8 = 12 + 2 = 15-3 = 42+7 = 6X 2= 6X6 = 1士1 = 49-7 = 5X 7=56-7 = 4X2 = 6X4 = 12-6 = 1X5= 12+3 = 24-8 = 2X5 = 2X 1 = 7X6= 5X4= 4 士4 = 48-8 = 7X 7=2X8= 35十7= 10-2 = 21-3 = 2X 7=3-1 = 30-6 = 42 + 6 = 2士2 = 6士2= 8X2= 1X3= 1X8 = 12-4 = 7X4= 25-5 = 3X6= 7X8 = 6X1 = 3X 5= 4X6= 16-4 = 18-6 = 30 士5 = 1X6= 1X2= 64-8 = 15-5 = 7X1 = 2X 4=7X 5= 3X 7= 8X1 = 4X8 = 8X5= 6X5= 7X2= 2士2 = 7X8 = 8X4= 10-5 = 8+ 8=100题班级：姓名：用时：分钟得分：一8X 6 = 1 X 4 = 40-5 = 48-6 = 5X 4=2X 4 =2X 8 = 8 士8= 42 士6 = 4 士1 =8X 3 = 21 士7 =5X 6= 40-8 = 8X 5=2X 3 = 12 士2 = 7X 5= 6X 8= 30-5 =2X 6 = 5 士5 = 7X 6= 7X 3= 4X 6=8X 3 = 7 士1 = 2X 2= 3- 3= 56 - 8 =32 士4 = 5 X 3 = 6- 3= 16-8 = 5 士5=1 X 4 = 5X 5 = 7 士1 = 32 - 8 = 2 士1 =6 士6 = 24 士4 = 32 - 8 = 36 - 6 = 18-3 =7X 4 = 8 士2 = 1X 2= 21 士7 = 20-5 =28 士4 = 14 士7 = 1X 7= 6X 2= 18-6 =15 士5 = 3X 3 = 35 士5 = 3X 6= 4X 5=25 士5 = 7X 3 = 7 士7= 3X 1 = 7 士7=3X 7 =6X 3 = 8 士4= 6X 7= 5X 5=24 士6 = 6X 7 =16 士4 = 1X 1 = 4 士4=5X 7 = 4X 4 = 1X 8= 20-5 = 8X 7=3X 4 = 40 - 5 = 9- 3= 8 士1 = 48 - 8 =24 士8 = 3 X 5 =64 - 8 = 3 士1 = 16 士2 =4X 7 = 12 士4 = 6 士2= 12 士6 = 40-8 =5X 8 = 24 士3 = 5X 1 = 14 士2 = 35 士5 =—R 81 J100题班级：_____ 姓名：—用时：____ 分钟得分：6 士2 = 5 士5 = 2X 1 = 2X 4= 4 士4= 1 X 3 = 2X7 = 24 士8 = 1X 6= 49-7 = 8 士2 = 5 X 3 = 4X 6= 30-5 = 10-5 = 3X 6 = 3 士1 = 20-5 = 3X 8= 8X 6= 1 士1 =9 士3 = 4X 8= 7 士1 = 3X 1 = 2X 3 = 5X 4 = 5X 4= 40-8 = 7X 8= 18-6 = 8X 4 = 8 士4= 4X 7= 15 士5 = 40 - 5 = 6X 7 =16 士2 = 7 士7= 6- 3=4X 5 = 40 - 8 = 3X 3= 24 士3 = 5 士5= 7X 6 = 64 - 8 = 4X 8= 8X 8= 14 士2 = 7X 1 = 3 X 5 =3X 7= 4X 2= 3X 2= 16 士4 = 6X 8 = 7 士1 = 2X 2= 3- 3=7X 6 = 24 士4 = 32 士4 = 1X 2= 8X 2= 2X 7 = 3X 1 = 32 - 8 = 7X 2= 18-6 = 1 X 5 = 12 士6 = 8X 5= 14 士7 = 30-6 = 9 士3 = 6X 4 = 24 士8 = 7X 5= 25 士5 = 3X 6 = 25 士5 = 4X 1 = 6X 1 = 28 士4 = 42 士6 = 3X 3 = 56 士7 = 6X 7= 12 士3 = 6X 2 = 1 X 6 = 6X 5= 1X 1 = 3X 4= 24 士6 = 2X 6 = 20-5 = 15 士5 = 1 士1 =100题班级：姓名：用时：分钟得分：一12 士2 =2X 8 = 8X 5= 5X 1 = 56 - 8 =2 士1 = 2 士2 = 4 士1 = 8X 3= 48 - 6 =64 - 8 = 2X 1 = 8 士8= 10 士2 = 21 士7 =6X 1 = 8X 1 = 6 士2= 8X 7= 56 - 8 =7X 3 = 20 士4 = 35 士7 = 18-3 = 48 - 6 =6 士1 = 7X 4 = 2X 5= 5X 5= 4X 3=6X 2 = 35 士5 = 5X 7= 5X 5= 6X 6=6X 3 = 12 士2 = 8 士1 = 48-8 = 4X 6=8X 3 = 16-8 = 28 士7 = 6 士6= 8X 2=3 X 5 = 15-3 = 56 士7 = 5X 2= 21 士3 =7 士7 =4X 7 = 5X 2= 1X 2= 7X 8=2X 4 = 4 士1 = 7X 7= 48-8 = 30-5 =1 X 4 = 5X 7 = 5X 6= 35 士5 = 18-3 =35 士7 = 7X 1 = 6 士1 = 10 士2 = 2 士2=4X 4 = 21 士7 =7X 5= 12 士4 = 42 士7 =6X 4 = 1 X 7 = 12 士6 = 3X 7= 7X 4=30 - 6 = 16 士2 = 3 士1 = 8 士8= 42 士6 =1 X 4 = 40 - 5 = 5X 8= 4 士4= 32 - 8 =7X 3 = 4 + 2 = 5 士1 = 16 士4 = 36 - 6 =2X 8 = 1 X 8 = 1X 8= 20 士4 = 12 士4 =—阳101J ”。
四年级下册数学 口算题 (乘法交换律和结合律) 1000题
月日姓名:练习范围：乘法交换律和结合律题数：100 分秒成绩:8 × 125 × 8 = 25 × 73 × 4 = 25 × 84 × 4 =86 × 25 × 4 = 88 × 25 × 4 = 17 × 25 × 4 =25 × 47 × 4 = 38 × 25 × 4 = 25 × 25 × 4 =125 × 5 × 8 = 42 × 25 × 4 = 8000 ÷ 8 ÷ 125 = 3000 ÷ 25 ÷ 4 = 14 × 25 × 4 = 25 × 91 × 4 = 6700 ÷ 25 ÷ 4 = 96 × 25 × 4 = 25 × 87 × 4 =125 × 2 × 8 = 125 × 15 × 8 = 16000 ÷ 8 ÷ 125 = 13000 ÷ 25 ÷ 4 = 25 × 6 × 4 = 13000 ÷ 8 ÷ 125 = 5 × 125 × 8 = 25 × 66 × 4 = 2000 ÷ 25 ÷ 4 = 12000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 = 14 × 125 × 8 =7 × 125 × 8 = 25 × 26 × 4 = 62 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 125 × 8 × 8 = 30 × 25 × 4 =25 × 22 × 4 = 125 × 18 × 8 = 10000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 52 × 25 × 4 = 76 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 18 × 25 × 4 = 15000 ÷ 8 ÷ 125 =25 × 59 × 4 = 7800 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 18 × 125 × 8 = 15 × 125 × 8 = 7000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 1000 ÷ 125 ÷ 8 = 7000 ÷ 25 ÷ 4 = 20000 ÷ 4 ÷ 25 = 19000 ÷ 8 ÷ 125 = 25 × 40 × 4 =25 × 75 × 4 = 13 × 125 × 8 = 11000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 10000 ÷ 125 ÷ 8 = 20000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 19 × 125 × 8 = 7000 ÷ 8 ÷ 125 = 25 × 12 × 4 = 10 × 125 × 8 = 12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 = 20000 ÷ 25 ÷ 4 = 3 × 125 × 8 =28 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 3000 ÷ 125 ÷ 8 = 85 × 25 × 4 = 25 × 60 × 4 = 6600 ÷ 25 ÷ 4 = 24 × 25 × 4 = 18000 ÷ 125 ÷ 8 = 26 × 25 × 4 =20 × 125 × 8 = 6 × 125 × 8 = 125 × 6 × 8 =74 × 25 × 4 = 25 × 48 × 4 = 20000 ÷ 8 ÷ 125 = 125 × 10 × 8 = 19000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 125 × 17 × 8 = 5900 ÷ 25 ÷ 4 = 8000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 4 × 125 × 8 = 125 × 3 × 8 =12 × 25 × 4 = 16 × 125 × 8 = 3000 ÷ 4 ÷ 25 = 5500 ÷ 25 ÷ 4 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：10025 × 33 × 4 = 13000 ÷ 125 ÷ 8 = 25 × 79 × 4 =18 × 25 × 4 = 20000 ÷ 125 ÷ 8 = 34 × 25 × 4 =94 × 25 × 4 = 13 × 25 × 4 = 20 × 25 × 4 =14 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 125 × 6 × 8 =16 × 125 × 8 = 25 × 58 × 4 = 12000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 8000 ÷ 8 ÷ 125 = 125 × 16 × 8 = 11000 ÷ 8 ÷ 125 = 1000 ÷ 8 ÷ 125 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 13 × 125 × 8 = 125 × 2 × 8 = 3 × 25 × 4 =800 ÷ 25 ÷ 4 = 62 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 5000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 20 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 2900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 4000 ÷ 125 ÷ 8 = 25 × 49 × 4 = 6300 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 18 × 8 = 2000 ÷ 8 ÷ 125 = 2 × 125 × 8 = 96 × 25 × 4 = 11000 ÷ 25 ÷ 4 =8 × 125 × 8 = 16000 ÷ 8 ÷ 125 = 17 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 6700 ÷ 25 ÷ 4 = 4 × 125 × 8 = 11000 ÷ 4 ÷ 25 = 4000 ÷ 25 ÷ 4 = 125 × 19 × 8 = 3000 ÷ 125 ÷ 8 = 9600 ÷ 25 ÷ 4 = 3 × 125 × 8 = 3000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 25 × 98 × 4 =52 × 25 × 4 = 25 × 59 × 4 = 4000 ÷ 8 ÷ 125 = 15000 ÷ 4 ÷ 25 = 25 × 43 × 4 = 1700 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 = 25 × 60 × 4 = 18 × 125 × 8 =56 × 25 × 4 = 7100 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 6000 ÷ 4 ÷ 25 = 1600 ÷ 25 ÷ 4 = 11 × 25 × 4 = 8400 ÷ 25 ÷ 4 = 25 × 73 × 4 = 7000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 6 × 25 × 4 = 9100 ÷ 25 ÷ 4 = 19000 ÷ 4 ÷ 25 = 17 × 125 × 8 = 9000 ÷ 125 ÷ 8 = 19 × 125 × 8 = 25 × 5 × 4 =25 × 12 × 4 = 20000 ÷ 4 ÷ 25 = 125 × 5 × 8 = 10000 ÷ 8 ÷ 125 = 54 × 25 × 4 = 25 × 91 × 4 = 14000 ÷ 4 ÷ 25 = 125 × 4 × 8 = 25 × 92 × 4 =25 × 26 × 4 = 4 × 25 × 4 = 16000 ÷ 125 ÷ 8 = 15 × 25 × 4 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：10010 × 125 × 8 = 28 × 25 × 4 = 6500 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 15 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 125 × 20 × 8 = 14000 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 16 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 14 × 8 = 25 × 48 × 4 =9 × 125 × 8 = 125 × 6 × 8 = 25 × 36 × 4 = 125 × 5 × 8 = 125 × 18 × 8 = 25 × 79 × 4 =25 × 60 × 4 = 125 × 4 × 8 = 25 × 32 × 4 = 3000 ÷ 4 ÷ 25 = 25 × 61 × 4 = 125 × 7 × 8 =74 × 25 × 4 = 125 × 19 × 8 = 8000 ÷ 8 ÷ 125 = 72 × 25 × 4 = 800 ÷ 25 ÷ 4 = 8 × 25 × 4 =19 × 125 × 8 = 25 × 59 × 4 = 125 × 9 × 8 = 3000 ÷ 25 ÷ 4 = 5 × 125 × 8 = 2 × 125 × 8 =6 × 125 × 8 = 25 × 92 × 4 = 4 × 125 × 8 = 1900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 13000 ÷ 4 ÷ 25 =125 × 10 × 8 = 2000 ÷ 4 ÷ 25 = 17 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 15000 ÷ 4 ÷ 25 = 17 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 25 × 40 × 4 =20 × 125 × 8 = 8000 ÷ 4 ÷ 25 = 125 × 13 × 8 =18 × 25 × 4 = 18 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 4000 ÷ 25 ÷ 4 = 1000 ÷ 8 ÷ 125 = 7300 ÷ 25 ÷ 4 = 1000 ÷ 125 ÷ 8 = 12000 ÷ 8 ÷ 125 = 19000 ÷ 125 ÷ 8 = 77 × 25 × 4 = 67 × 25 × 4 = 7000 ÷ 8 ÷ 125 = 5000 ÷ 125 ÷ 8 = 25 × 39 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 12 × 8 = 15000 ÷ 8 ÷ 125 = 25 × 58 × 4 = 16000 ÷ 8 ÷ 125 = 20000 ÷ 4 ÷ 25 = 25 × 43 × 4 = 7000 ÷ 125 ÷ 8 = 25 × 89 × 4 = 25 × 99 × 4 =12 × 25 × 4 = 25 × 26 × 4 = 5100 ÷ 25 ÷ 4 = 5900 ÷ 25 ÷ 4 = 25 × 52 × 4 = 19000 ÷ 8 ÷ 125 = 25 × 17 × 4 = 24 × 25 × 4 = 18000 ÷ 125 ÷ 8 = 25 × 16 × 4 = 2400 ÷ 25 ÷ 4 = 16000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 73 × 4 =25 × 66 × 4 = 3000 ÷ 125 ÷ 8 = 25 × 34 × 4 =3 × 125 × 8 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：10013000 ÷ 8 ÷ 125 = 25 × 79 × 4 = 25 × 23 × 4 =125 × 5 × 8 = 8000 ÷ 4 ÷ 25 = 40 × 25 × 4 =17 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 48 × 4 =125 × 16 × 8 = 25 × 43 × 4 = 25 × 59 × 4 = 19000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 25 × 52 × 4 =87 × 25 × 4 = 125 × 19 × 8 = 25 × 19 × 4 = 2000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 17000 ÷ 25 ÷ 4 = 51 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 5600 ÷ 25 ÷ 4 = 12 × 25 × 4 = 8 × 125 × 8 =25 × 40 × 4 = 9300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 38 × 25 × 4 = 3000 ÷ 25 ÷ 4 =5 × 25 × 4 = 14 × 125 × 8 = 125 × 9 × 8 =25 × 26 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 16000 ÷ 4 ÷ 25 = 5000 ÷ 25 ÷ 4 = 25 × 73 × 4 = 17000 ÷ 4 ÷ 25 = 18000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 =125 × 4 × 8 = 2800 ÷ 25 ÷ 4 = 7000 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 = 26 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 25 × 27 × 4 = 84 × 25 × 4 = 12000 ÷ 125 ÷ 8 = 25 × 58 × 4 = 4500 ÷ 25 ÷ 4 = 3600 ÷ 25 ÷ 4 = 11000 ÷ 25 ÷ 4 = 20 × 125 × 8 = 77 × 25 × 4 =46 × 25 × 4 = 13000 ÷ 125 ÷ 8 = 18 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 9500 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 12 × 8 = 15000 ÷ 8 ÷ 125 = 15 × 125 × 8 = 13 × 125 × 8 = 4000 ÷ 25 ÷ 4 = 74 × 25 × 4 =25 × 34 × 4 = 5900 ÷ 25 ÷ 4 = 125 × 20 × 8 =17 × 125 × 8 = 11000 ÷ 8 ÷ 125 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 18 × 125 × 8 = 25 × 70 × 4 = 8600 ÷ 25 ÷ 4 = 4 × 125 × 8 = 10000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 = 25 × 45 × 4 =96 × 25 × 4 = 72 × 25 × 4 = 9 × 25 × 4 =42 × 25 × 4 = 19000 ÷ 25 ÷ 4 = 16000 ÷ 125 ÷ 8 = 25 × 5 × 4 = 7800 ÷ 25 ÷ 4 = 25 × 91 × 4 = 3000 ÷ 4 ÷ 25 = 125 × 2 × 8 = 71 × 25 × 4 = 7000 ÷ 4 ÷ 25 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：1003000 ÷ 125 ÷ 8 = 25 × 33 × 4 = 14000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 2000 ÷ 8 ÷ 125 = 6200 ÷ 25 ÷ 4 = 25 × 75 × 4 = 2600 ÷ 25 ÷ 4 = 25 × 44 × 4 =125 × 18 × 8 = 25 × 48 × 4 = 12 × 25 × 4 = 2000 ÷ 125 ÷ 8 = 8800 ÷ 25 ÷ 4 = 13 × 125 × 8 = 85 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 18000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 62 × 25 × 4 = 19000 ÷ 125 ÷ 8 = 6700 ÷ 25 ÷ 4 = 25 × 58 × 4 = 3900 ÷ 25 ÷ 4 = 96 × 25 × 4 = 19 × 125 × 8 = 8000 ÷ 125 ÷ 8 = 12000 ÷ 125 ÷ 8 = 74 × 25 × 4 = 13000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 1000 ÷ 8 ÷ 125 = 4 × 125 × 8 =8 × 25 × 4 = 7500 ÷ 25 ÷ 4 = 7000 ÷ 8 ÷ 125 = 25 × 92 × 4 = 42 × 25 × 4 = 12 × 125 × 8 = 12000 ÷ 8 ÷ 125 = 6 × 125 × 8 = 125 × 8 × 8 = 125 × 20 × 8 = 7 × 125 × 8 = 25 × 32 × 4 =5000 ÷ 25 ÷ 4 = 58 × 25 × 4 = 4000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 11000 ÷ 125 ÷ 8 = 25 × 12 × 4 = 6000 ÷ 125 ÷ 8 = 11000 ÷ 8 ÷ 125 = 25 × 13 × 4 = 7000 ÷ 25 ÷ 4 = 25 × 49 × 4 = 125 × 11 × 8 =14 × 25 × 4 = 17000 ÷ 125 ÷ 8 = 25 × 35 × 4 = 8200 ÷ 25 ÷ 4 = 17000 ÷ 8 ÷ 125 = 20 × 125 × 8 = 11 × 125 × 8 = 6000 ÷ 4 ÷ 25 = 25 × 2 × 4 =125 × 7 × 8 = 125 × 4 × 8 = 10000 ÷ 8 ÷ 125 = 125 × 9 × 8 = 16 × 125 × 8 = 32 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 28 × 4 = 8000 ÷ 8 ÷ 125 = 54 × 25 × 4 = 6100 ÷ 25 ÷ 4 = 125 × 12 × 8 =77 × 25 × 4 = 29 × 25 × 4 = 25 × 66 × 4 =66 × 25 × 4 = 25 × 76 × 4 = 25 × 5 × 4 =15 × 125 × 8 = 78 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 = 52 × 25 × 4 = 25 × 60 × 4 =17 × 25 × 4 = 14000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 = 6400 ÷ 25 ÷ 4 = 11000 ÷ 4 ÷ 25 = 8000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 125 × 5 × 8 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：1001000 ÷ 125 ÷ 8 = 18000 ÷ 125 ÷ 8 = 24 × 25 × 4 =6 × 125 × 8 = 125 × 13 × 8 = 3 × 25 × 4 =6000 ÷ 8 ÷ 125 = 18000 ÷ 8 ÷ 125 = 25 × 59 × 4 =80 × 25 × 4 = 18 × 25 × 4 = 4 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 64 × 25 × 4 = 25 × 34 × 4 =46 × 25 × 4 = 5600 ÷ 25 ÷ 4 = 5 × 25 × 4 =25 × 4 × 4 = 16000 ÷ 125 ÷ 8 = 125 × 9 × 8 =25 × 73 × 4 = 11000 ÷ 4 ÷ 25 = 65 × 25 × 4 =25 × 49 × 4 = 125 × 6 × 8 = 16000 ÷ 8 ÷ 125 = 7000 ÷ 4 ÷ 25 = 19 × 125 × 8 = 25 × 12 × 4 = 5000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 3000 ÷ 125 ÷ 8 = 12 × 25 × 4 = 125 × 4 × 8 =88 × 25 × 4 = 92 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 87 × 25 × 4 = 2600 ÷ 25 ÷ 4 = 125 × 2 × 8 =25 × 66 × 4 = 34 × 25 × 4 = 23 × 25 × 4 =85 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 28 × 25 × 4 = 5000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 125 × 7 × 8 = 20000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 8000 ÷ 4 ÷ 25 = 16 × 125 × 8 = 3 × 125 × 8 = 1000 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 15 × 8 = 25 × 40 × 4 = 18000 ÷ 4 ÷ 25 = 2500 ÷ 25 ÷ 4 = 9 × 125 × 8 = 7000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 91 × 25 × 4 = 16000 ÷ 4 ÷ 25 = 125 × 19 × 8 = 12000 ÷ 4 ÷ 25 = 3900 ÷ 25 ÷ 4 = 3000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 = 62 × 25 × 4 = 8 × 125 × 8 =25 × 92 × 4 = 20000 ÷ 4 ÷ 25 = 25 × 79 × 4 =25 × 38 × 4 = 3000 ÷ 4 ÷ 25 = 7000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 25 × 91 × 4 = 4300 ÷ 25 ÷ 4 = 10000 ÷ 4 ÷ 25 = 99 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 17 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 25 × 27 × 4 = 6700 ÷ 25 ÷ 4 = 14000 ÷ 125 ÷ 8 = 125 × 11 × 8 = 25 × 48 × 4 = 25 × 58 × 4 = 14000 ÷ 4 ÷ 25 = 70 × 25 × 4 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：100125 × 18 × 8 = 24 × 25 × 4 = 25 × 72 × 4 = 18000 ÷ 125 ÷ 8 = 125 × 2 × 8 = 9 × 125 × 8 =27 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 5400 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 54 × 25 × 4 =125 × 16 × 8 = 3400 ÷ 25 ÷ 4 = 16 × 125 × 8 =25 × 79 × 4 = 125 × 19 × 8 = 42 × 25 × 4 =125 × 8 × 8 = 8 × 25 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 3 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 25 × 36 × 4 = 16000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 12000 ÷ 4 ÷ 25 = 5 × 25 × 4 = 6400 ÷ 25 ÷ 4 =3 × 125 × 8 = 73 × 25 ×4 = 800 ÷ 25 ÷ 4 =41 × 25 × 4 = 5 × 125 × 8 = 48 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 43 × 4 = 15000 ÷ 8 ÷ 125 = 68 × 25 × 4 = 13 × 125 × 8 =10000 ÷ 125 ÷ 8 = 6000 ÷ 8 ÷ 125 = 47 × 25 × 4 =25 × 71 × 4 = 1000 ÷ 25 ÷ 4 = 25 × 48 × 4 =34 × 25 × 4 = 9500 ÷ 25 ÷ 4 = 19 × 125 × 8 =17 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 8000 ÷ 4 ÷ 25 = 125 × 15 × 8 = 10000 ÷ 4 ÷ 25 = 67 × 25 × 4 =125 × 5 × 8 = 25 × 74 × 4 = 125 × 10 × 8 = 15000 ÷ 125 ÷ 8 = 125 × 13 × 8 = 11 × 125 × 8 =25 × 34 × 4 = 16 × 25 × 4 = 25 × 60 × 4 =125 × 7 × 8 = 19000 ÷ 125 ÷ 8 = 8300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 8 × 125 × 8 = 12 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 17000 ÷ 8 ÷ 125 = 14000 ÷ 8 ÷ 125 = 125 × 17 × 8 = 6700 ÷ 25 ÷ 4 = 84 × 25 × 4 =25 × 80 × 4 = 10000 ÷ 8 ÷ 125 = 12000 ÷ 8 ÷ 125 = 25 × 75 × 4 = 62 × 25 × 4 = 9000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 125 × 6 × 8 = 77 × 25 × 4 =25 × 26 × 4 = 25 × 13 × 4 = 6 × 125 × 8 =25 × 92 × 4 = 46 × 25 × 4 = 7900 ÷ 25 ÷ 4 = 85 × 25 × 4 = 125 × 9 × 8 = 1000 ÷ 8 ÷ 125 = 25 × 98 × 4 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：1005 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 9000 ÷ 125 ÷ 8 = 2000 ÷ 8 ÷ 125 = 74 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 20000 ÷ 125 ÷ 8 = 25 × 66 × 4 = 13 × 125 × 8 = 51 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 74 × 4 = 6000 ÷ 4 ÷ 25 = 5000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 62 × 25 × 4 = 25 × 26 × 4 = 125 × 3 × 8 = 25 × 60 × 4 =25 × 73 × 4 = 46 × 25 × 4 = 25 × 40 × 4 =25 × 37 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 35 × 4 = 4000 ÷ 8 ÷ 125 = 6000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 16000 ÷ 125 ÷ 8 = 10000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 5800 ÷ 25 ÷ 4 = 15 × 125 × 8 = 25 × 34 × 4 = 24 × 25 × 4 = 6700 ÷ 25 ÷ 4 = 125 × 16 × 8 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 77 × 25 × 4 = 20 × 125 × 8 = 4000 ÷ 125 ÷ 8 =18 × 125 × 8 = 3000 ÷ 4 ÷ 25 = 25 × 43 × 4 =25 × 91 × 4 = 3000 ÷ 125 ÷ 8 = 90 × 25 × 4 = 16000 ÷ 4 ÷ 25 = 7000 ÷ 8 ÷ 125 = 15000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 = 4 × 125 × 8 =87 × 25 × 4 = 12000 ÷ 8 ÷ 125 = 800 ÷ 25 ÷ 4 = 10000 ÷ 125 ÷ 8 = 25 × 88 × 4 = 19 × 125 × 8 =16 × 25 × 4 = 125 × 2 × 8 = 125 × 14 × 8 = 6100 ÷ 25 ÷ 4 = 96 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 25 × 75 × 4 = 300 ÷ 25 ÷ 4 = 11000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 125 × 5 × 8 = 55 × 25 × 4 =25 × 92 × 4 = 25 × 6 × 4 = 7 × 125 × 8 =18 × 25 × 4 = 25 × 48 × 4 = 125 × 7 × 8 =11 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 125 × 17 × 8 =85 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 3300 ÷ 25 ÷ 4 = 25 × 12 × 4 = 16000 ÷ 8 ÷ 125 = 25 × 50 × 4 =125 × 6 × 8 = 125 × 10 × 8 = 6000 ÷ 25 ÷ 4 = 38 × 25 × 4 = 12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 = 6 × 125 × 8 = 25 × 2 × 4 = 2300 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：1006000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 96 × 25 × 4 = 18 × 125 × 8 = 27 × 25 × 4 = 16000 ÷ 8 ÷ 125 = 1100 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 46 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 5600 ÷ 25 ÷ 4 = 20000 ÷ 25 ÷ 4 = 125 × 11 × 8 = 25 × 53 × 4 = 52 × 25 × 4 =83 × 25 × 4 = 25 × 48 × 4 = 125 × 15 × 8 = 13 × 125 × 8 = 100 ÷ 25 ÷ 4 = 98 × 25 × 4 = 7000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 25 × 24 × 4 = 15000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 1000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 25 × 55 × 4 = 15 × 125 × 8 = 6400 ÷ 25 ÷ 4 = 8 × 25 × 4 = 54 × 25 × 4 =25 × 67 × 4 = 16000 ÷ 4 ÷ 25 = 25 × 91 × 4 = 10000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 2000 ÷ 125 ÷ 8 = 125 × 9 × 8 = 1000 ÷ 8 ÷ 125 = 125 × 10 × 8 =3000 ÷ 4 ÷ 25 = 34 × 25 × 4 = 3400 ÷ 25 ÷ 4 = 25 × 61 × 4 = 125 × 12 × 8 = 25 × 66 × 4 = 19000 ÷ 125 ÷ 8 = 3000 ÷ 125 ÷ 8 = 4000 ÷ 8 ÷ 125 = 9200 ÷ 25 ÷ 4 = 25 × 79 × 4 = 7000 ÷ 8 ÷ 125 = 5000 ÷ 8 ÷ 125 = 62 × 25 × 4 = 16 × 125 × 8 = 14 × 25 × 4 = 25 × 56 × 4 = 5000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 25 × 73 × 4 = 7800 ÷ 25 ÷ 4 = 25 × 20 × 4 = 25 × 76 × 4 = 6 × 125 × 8 = 7000 ÷ 4 ÷ 25 = 85 × 25 × 4 = 125 × 16 × 8 =8 × 125 × 8 = 9000 ÷ 4 ÷ 25 = 25 × 75 × 4 =17 × 25 × 4 = 125 × 19 × 8 = 5 × 125 × 8 =18 × 25 × 4 = 11000 ÷ 125 ÷ 8 = 25 × 58 × 4 = 125 × 4 × 8 = 25 × 95 × 4 = 25 × 81 × 4 = 10000 ÷ 4 ÷ 25 = 12000 ÷ 4 ÷ 25 = 25 × 60 × 4 =17 × 125 × 8 = 11000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 18000 ÷ 4 ÷ 25 = 3000 ÷ 25 ÷ 4 = 125 × 5 × 8 =25 × 52 × 4 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 42 × 25 × 4 = 600 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 =月日姓名:练习范围：乘法交换律和结合分秒成绩:律题数：10019 × 125 × 8 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 16 × 8 = 3000 ÷ 125 ÷ 8 = 25 × 82 × 4 = 125 × 10 × 8 = 66 × 25 × 4 = 34 × 25 × 4 = 3700 ÷ 25 ÷ 4 = 25 × 56 × 4 = 15 × 125 × 8 =14 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 19 × 8 =25 × 40 × 4 = 13 × 125 × 8 = 3900 ÷ 25 ÷ 4 = 14000 ÷ 8 ÷ 125 = 8700 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 16000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 2000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 25 × 92 × 4 = 18000 ÷ 125 ÷ 8 = 6600 ÷ 25 ÷ 4 = 18000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 5 × 25 × 4 = 15000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 7700 ÷ 25 ÷ 4 = 800 ÷ 25 ÷ 4 = 5000 ÷ 125 ÷ 8 = 46 × 25 × 4 = 125 × 5 × 8 = 7000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 25 × 98 × 4 = 67 × 25 × 4 = 125 × 15 × 8 =6700 ÷ 25 ÷ 4 = 125 × 4 × 8 = 39 × 25 × 4 =16 × 125 × 8 = 125 × 3 × 8 = 6000 ÷ 125 ÷ 8 = 1000 ÷ 4 ÷ 25 = 125 × 12 × 8 = 12 × 125 × 8 = 19000 ÷ 8 ÷ 125 = 19000 ÷ 4 ÷ 25 = 7000 ÷ 8 ÷ 125 = 25 × 66 × 4 = 19 × 25 × 4 = 12000 ÷ 125 ÷ 8 = 25 × 78 × 4 = 8400 ÷ 25 ÷ 4 = 5000 ÷ 8 ÷ 125 = 25 × 58 × 4 = 4400 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 13000 ÷ 4 ÷ 25 = 25 × 73 × 4 = 7 × 125 × 8 = 9000 ÷ 125 ÷ 8 = 4100 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 63 × 25 × 4 = 96 × 25 × 4 = 125 × 11 × 8 =18 × 25 × 4 = 125 × 8 × 8 = 25 × 34 × 4 = 13000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 83 × 25 × 4 =29 × 25 × 4 = 4300 ÷ 25 ÷ 4 = 6000 ÷ 4 ÷ 25 = 8 × 125 × 8 = 25 × 75 × 4 = 25 × 59 × 4 =17 × 25 × 4 = 20000 ÷ 8 ÷ 125 = 6400 ÷ 25 ÷ 4 = 74 × 25 × 4 = 25 × 49 × 4 = 25 × 48 × 4 =3 × 125 × 8 = 25 × 93 ×4 = 7000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 5 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 2 × 8 =。
数学乘法试题答案及解析
数学乘法试题答案及解析1.停车场停了6行轿车，每行14辆，一共有多少辆轿车？【答案】84辆【解析】6行轿车，每行14辆，可以看成是求6个14是多少，用乘法求解．解：14×6=84（辆）；答：一共有84辆轿车．点评：本题根据乘法的意义：求几个几是多少，用乘法．2.学校组织同学去博物馆参观．三年级去了62人，四年级去的人数是三年级的2倍．两个年级一共去了多少人？【答案】186人【解析】“四年级去的人数是三年级的2倍．”先求出四年级的人数：即求62的2倍是多少，用乘法，再加上三年级的人数，即可解答．解：62×2+62，=124+62，=186（人），答：两个年级一共去了186人．点评：根据乘法的意义，先求出四年级的人数，再加上三年级的人数是本题的关键．3.口算：40×20= 23×30= 12×30= 98÷2= 8×200=42×20= 32×2= 72÷6= 46÷5= 360÷9=180÷9= 500×6= 54÷2= 11×30= 60×20=22×30= 50×10= 0×51= 259+51= 64÷2=【答案】800,690,360,49,1600,840,64,12,9…1,40,20,3000,27,330,1200,660,500,0,310,32【解析】本题根据整数乘法、除法、加法的运算法则计算即可．解：40×20=800， 23×30=690， 12×30=360， 98÷2=49， 8×200=1600，42×20=840， 32×2=64， 72÷6=12，46÷5=9…1， 360÷9=40，180÷9=20， 500×6=3000， 54÷2=27， 11×30=330， 60×20=1200，22×30=660， 50×10=500， 0×51=0， 259+51=310， 64÷2=32．点评：完成此类题目要细心分析式中数据，在保证做题质量的同时，要注意提高做题的速度．4.周末，小明去麦当劳，发现A类套餐每份18元，B类套餐每份21元，他带了60元，买3份，有几种买法？【答案】3种【解析】根据题意，买3份麦当劳，不看钱数，可以分为：A类1份和B类2份；A类2份和B类1份；A类3份；B类3份；共4种买法，但是要考虑他所带的钱数，也就是花的钱数不能超过所带的钱数，然后再进一步解答即可．解：根据题意可得：第一种：A类1份和B类2份，花的钱数是：18+21×2=18+42=60（元）；第二种：A类2份和B类1份，花的钱数是：18×2+21=36+21=57（元）；第三种：A类3份，花的钱数是：18×3=54（元）；第四种：B类3份，花的钱数是：21×3=63（元），63＞60，也就是超过了他带的钱数，所以，此种买法不合理．由以上分析可得，他一共有3中买法．答：有3种买法．点评：根据题意，只分析有几种买法非常简单，而本题他所带的钱数只有60元，那么在所有的买法中，花掉的钱数不能超过60元，假如超过60元了，那么此种买法就不存在．5.学校为老师买来5本同样的参考书．每本厚8毫米，一共厚多少毫米？【答案】40毫米【解析】用每本的厚度8毫米乘上书的本数5本即可．答：一共厚40毫米．点评：本题根据乘法的意义：求几个几是多少用乘法求解．6.直接写出得数230×30= 840÷40= 40×25= 720÷60= 70×70= 1000÷20=【答案】6900,21,1000,12,4900,50【解析】根据整数乘除法的计算方法进行解答即可．解：230×30=6900 840÷40=21 40×25=1000 720÷60=12 70×70=4900 1000÷20=50点评：此题考查了整数乘除法的口算能力，注意运算符号，认真计算即可．7.森林不但能制造氧气，还能分泌杀菌素，净化空气．1公顷森林每天分泌杀菌素54千克，1公顷森林1星期能分泌杀菌素多少千克？【答案】378千克【解析】要求1公顷森林1星期能分泌杀菌素多少千克，也就是求1公顷森林7天能分泌杀菌素多少千克，用54×7即可．解：54×7=378（千克）．答：1公顷森林1星期能分泌杀菌素378千克．点评：本题的关键是1星期等于7天，然后再乘上1公顷森林每天分泌杀菌素即可．8.新年的挂历每本15元，买4本送1本，张阿姨一次买4本，每本便宜多少钱？【答案】3元【解析】根据题意，张阿姨一次买4本，实际上是给了5本，而花的是4本的钱数，即15×4=60元，那么现在每本的价格就是：60÷5=12元，然后与原来每本的价格进行比较即可．解：根据题意可得：15×4=60（元），60÷5=12（元），15﹣12=3（元）．答：每本便宜3元．点评：根据题意，先求出张阿姨花的钱数，然后再求出她实际每本的价格，然后再与原来每本的价格进行比较解答即可．9.平安希望小学432名学生参观科技馆，租9辆车够吗？【答案】不够【解析】先根据客车可坐总人数=每辆客车可坐人数×客车辆数，求出9辆客车可坐人数，再与432比较即可解答．解：45×9=405（人），432＞405，答：租9辆车不够．点评：解答本题首先要明确图示表达的意义，再据解决问题，找出数据，依据数量间的等量关系代入解答．10.比较大小．44×257 45×25663×347 62×34875×24 25×37368×39 467×40．【答案】＜，＞，＜，＜【解析】依据整数乘法计算方法，分别求出每题中题干两侧算式的积，再根据整数大小比较方法即可解答．45×256=11520，所以44×257＜45×256；63×347=21861，62×348=21576，所以63×347＞62×348；75×24=1800，25×373=9325，所以75×24＜25×373；68×39=2652，467×40=18680，68×39＜467×40．故答案为：＜，＞，＜，＜．点评：本题主要考查学生依据整数乘法计算方法解决问题的能力，注意计算结果要准确．11.开心填一填．【答案】1215,1075,1104【解析】用平均每人有课外书的本数乘上人数，就是这个班共有课外书的本数，由此求解．解：27×45=1215（本）；25×43=1075（本）；24×46=1104（本）；表格如下：12.32÷□=4（32÷4）÷（8÷□）=4．【答案】8，4【解析】根据商不变的性质：被除数和除数同时扩大或缩小相同的倍数商不变．解：32÷8=4；（32÷4）÷（8÷4）=4；故答案为：8，4．点评：运用商不变的性质解答，注意算式之间的联系．13.比一比，哪辆小车跑得快？【答案】45,180,360,1800；51,102,612,2448【解析】依据整数乘法计算方法即可解答．解：点评：本题主要考查学生依据整数乘法计算方法解决问题的能力．14.花儿真美丽．（找规律，填一填）【答案】320,480,900【解析】根据第一朵花，其花朵和花叶上的数可得：两朵花叶上的数相乘得花朵上的数，据此规律，再依据整数乘法计算方法即可解答．解：16×20=320，12×40=480，60×15=900，故答案依次为：320，480，900．点评：解答此类题目首先要明确图示表达的意义，再根据解决问题需要数量间的等量关系，代入数据即可解答．15.两个因数分别是36和8，积是多少？如果把因数8改成16、80、800，积分别是多少？【答案】228，456，2280，22800【解析】依据积=因数×因数，以及整数乘法计算方法，先求出36乘8的积，再根据两个因数相乘，其中一个因数不变，另一个因数扩大多少倍，积就扩大多少倍即可解答．解：36×8=228，36×16=456，36×80=2280，36×800=22800，答：积依次是228，456，2280，22800．点评：解答本题不需要依据整数乘法计算方法一次求出它们的积，只要明确积与因数的扩大或缩小的关系即可．16.竖式高楼我来造．208×3=280×3=304×3=【答案】624；840；912【解析】依据整数乘法竖式计算方法即可解答．解：208×3=624；280×3=840；304×3=912．点评：本题主要考查学生依据整数乘法竖式计算方法解决问题的能力．17.一辆汽车限坐24人，一个旅行团有98人，租4辆这样的汽车够吗？【答案】不够【解析】依据总人数=每辆车可坐人数×车的辆数，求出4两车共坐的人数，再与98比较即可解答．解：24×4=96（人），96＜98，答：租4辆这样的汽车不够．点评：解答本题的关键是求出4两车共坐的人数．18. 3×70= 500×5= 30×5﹣100= 7×8+45= 800×2=50÷10= 5×2×4= 80÷4﹣17= 450+5= 200÷10=600×8= 800÷20= 400÷80= 180+120= 62﹣56÷7=40+6×9= 450÷5= 160÷4= 900×5= 480÷80=【答案】210,2500,50,101,1600,5,40,3,455,20,4800,40,5,300,54,94,90,40,4500,6【解析】运用整数的加减乘除法的计算法则进行解答即可，注意末尾有0的乘除法的简便计算．解：3×70=210， 500×5=2500， 30×5﹣100=50， 7×8+45=101， 800×2=1600，50÷10=5， 5×2×4=40， 80÷4﹣17=3， 450+5=455， 200÷10=20，600×8=4800， 800÷20=40， 400÷80=5， 180+120=300， 62﹣56÷7=54，40+6×9=94， 450÷5=90， 160÷4=40， 900×5=4500， 480÷80=6，点评：此题考查学生的口算能力，属于基础题．19.哪两个数相乘的积接近圈中的数？把它们连起来．【答案】【解析】根据整数乘法的估算方法进行解答．解：．点评：考查了整数乘法的估算，把因数看作整十数、整百数或整千数，然后再进一步计算．20.停车场上有36辆小轿车，是卡车数量的3倍．停车场上有小轿车和卡车共多少辆？【答案】48辆【解析】有36辆小轿车，是卡车数量的3倍，根据除法的意义可知，卡车有36÷3辆，则将种车的数量相加后即得停车场上有小轿车和卡车共多少辆．解：36÷3+36=12+36，=48（辆）；答：停车场上有小轿车和卡车共48辆．点评：根据除法的意义求出卡车的辆数是完成本题的关键．除法的意义为：已知两个因数的和与其中一个因数，求另一个因数的运算．21.一捆树苗有12棵．【答案】156棵【解析】根据题意，要求一共栽多少棵，就是求13捆树苗有多少棵，又一捆树苗有12棵，也就是13个12 是多少，即12×13．解：12×13=156（棵）．答：一共要栽156棵．点评：求几个相同加数和的简便计算，用乘法进行计算．22.你能算一算我2分钟跳多少下吗？3分钟呢？【答案】246下，369下【解析】用每分钟跳的个数乘上2分钟，就是2分钟跳的个数；用每分钟跳的个数乘上3分钟，就是3分钟跳的个数．解：123×2=246（下）；123×3=369（下）；答：2分钟跳246下，3分钟跳369下．点评：本题根据乘法的意义：求几个几是多少进行求解即可．23.连一连．【答案】【解析】计算出上面算式的乘积，再进行连线即可．解：212×3=636；331×2=662；112×3=336；424×2=848；连线如下：点评：本题也可以根据乘积的个位数进行判断，如：212×3个位上的积是2×3=6，下面的数中只有636个位是6，所以212×3=616．24. 132×26=【答案】3432【解析】根据整数乘法竖式计算的方法进行计算．解：132×26=3432点评：考查了整数乘法的笔算，根据其计算方法进行计算．25.口算下面各题．45×2= 4×25= 15×2= 15×6= 35×2=24×5= 25×2= 125×8= 15×4=【答案】90,100,30,90,70,120,50,1000,60【解析】直接利用整数乘法的计算方法计算即可．解：45×2=90 4×25=100 15×2=30 15×6=90 35×2=7024×5=120 25×2=50 125×8=1000 15×4=60点评：计算注意乘积末尾的0．26.商场新进了一批电子琴，每台售价307元．乐队买30台电子琴一共要用多少钱？【答案】9210元【解析】根据题意，每台售价307元，要买30台，就是30个307元，即307×30，然后再进一步解答．解：307×30=9210（元）．答：一共要用9210元钱．点评：求几个相同加数的和是多少，用乘法进行解答．27.五月份一共需要用去多少个鸡蛋？【答案】403个【解析】五月份一共是31天，用每天用去的鸡蛋乘上31天即可．解：五月份一共是31天；13×31=403（个）；答：五月份一共需要用去403个鸡蛋．点评：本题根据乘法的意义：求几个几是多少，列出乘法算式求解，注意五月份是大月，有31天．28.下面的计算对吗？把错误的改正过来．38×2=6632×4=138【答案】（1）错；改正：；（2）错；改正：．【解析】根据整数乘法的竖式计算的方法进行解答即可．解：（1）错；改正：；（2）错；改正：．点评：考查了整数乘法的笔算，根据其计算方法进行计算即可．29.草地上有14只黑羊，白羊的只数是黑羊的3倍，花羊比白羊少6只，花羊有多少只？【答案】36只【解析】有14只黑羊，白羊的只数是黑羊的3倍，根据乘法的意义可知，白羊有14×3只，花羊比白羊少6只，则用白羊的只数减去6只即是花羊的只数，列式为14×3﹣6．解：14×3﹣6=42﹣6，=36（只）．答：花羊有36只．点评：首先根据乘法的意义求出白羊的只数是完成本题的关键．30.列竖式计算．402×2130×6340×3306×3．【答案】804,780,1020,918【解析】利用整数乘法的计算方法直接列竖式计算即可．解：402×2=804；130×6=780；340×3=1020；306×3=918；点评：计算注意末尾有0的乘法以及乘积的数位．31.一块钢板重500千克，2块这样的钢板重多少千克？合多少吨？【答案】1000千克，1吨【解析】根据整数乘法的意义，求2个500千克是多少千克，用乘法解答．解：500×2=1000（千克），1000千克=1吨，答：2块这样的钢板重1000千克，合1吨．点评：此题考查的目的是理解整数乘法的意义，掌握质量单位之间的换算方法．32. 4×30 2×80 5×50 5×900 9×700 600×7【答案】120,160,250,4500,6300,4200【解析】一个数乘整十、整百…的数，只要把前面的数相乘，因数中有几个0就在得到的积后面添几个0．解：4×30=120， 2×80=160， 5×50=250， 5×900=4500， 9×700=6300， 600×7=4200，点评：本题的计算方法较多，如，用口算，列竖式等计算方法，我们运用口算的方法进行解答，这种类型的题目，考查了学生的口算能力．33.四（2）班有46人，学校准备为他们更换新的课桌椅（单人），课桌椅每套ll8元．5000元够用吗？【答案】够【解析】46人就需要46套，用每套的单价乘上46求出需要的总钱数，然后与5000比较即可求解．解：118×46=5428（元）；5428＞5000；答：5000元够．点评：本题根据总价=单价×数量，求出需要的总钱数，进而求解．34.横线上最大能填几？40×＜87 50×＜46088×＜874 54×＜314．【答案】2，9，9，5【解析】本题根据乘法与除法的互逆关系即能求得横线上最大能填几．解：（1）87÷40=2…7，40×2＜87；（2）460÷50=9…10，50×9＜460；（3）874÷88=9…82，88×9＜874；（4）314÷54=5…44，54×5＜314．故答案为：2，9，9，5．点评：本题考查了学生根据乘法与除法的互逆关系解决问题的能力．35.下面的竖式计算对吗？对的画“√”，错的画“×”，并改正．【答案】×，；×，【解析】依据整数乘法竖式计算方法即可解答．解：；，故答案为：×，×．点评：正确运用整数乘法竖式计算方法解决问题，是本题考查知识点．36.小光从2012年2月25日开始收集废旧电池，他平均每天收集5个，到3月3日止，他一共收集多少个废旧电池？【答案】40个【解析】先推算出从2012年2月25日到3月3日经过的天数，再用每天收集的数量乘上经过的天数即可．解：2012÷4=503；2012年是闰年，2月有29天；从2月25人到2月29日是5天；2月29日到3月3日是3天；一共是5+3=8（天）；5×8=40（个）；答：他一共收集40个废旧电池．点评：解决本题首先要注意判断2月份的天数，而且经过的天数两头都要算，求出经过的天数，再根据乘法的意义求解即可．37.先判断，再将错误的改正过来【答案】（1）×；改正：；（2）×；改正：；（3）×；改正：【解析】（1）两次乘得的积的数位没有对齐，所以错；（2）244×4的结果是976，而不是966，所以错；（3）163×6的积是978，不是678，所以错；然后再根据整数乘法竖式计算的方法进行改正．解：（1）×；改正：；（2）×；改正：；（3）×；改正：．点评：考查了整数乘法的笔算，根据其计算方法进行计算．38.把乘得的积填在下面的空格里．×206260180204【答案】1236,1560,1080,1224【解析】根据乘法的计算方法可求出它们的积是多少．解：206×6=1236，260×6=1560，180×6=1080，204×6=1224．填表如下：点评：本题主要考查了学生整数乘法的计算能力．39.数学智慧园．（1）某工厂有男工人306人，女工人人数是男工人的4倍，女工有多少人？（2）水果超市运来6筐苹果，每筐有203个，一共运来多少个苹果？（3）如图甲王老师用全拼输入法打字，一分钟能打140个字．他打一篇文章正好用了8分钟．照这样计算，这篇文章有多少个字？（4）特快列车1小时大约行160千米，5小时大约行多少千米？【答案】1224人，1218个，1120个，800千米【解析】（1）求女工有多少人，就是求306的4倍是多少．求一个数的几倍是多少用乘法计算．（2）“水果超市运来6筐苹果，每筐有203个”，求一共运来多少个苹果．就是求6个203是多少．（3）“一分钟能打140个字．他打一篇文章正好用了8分钟”．照这样计算，这篇文章有多少个字．就是求8个140是多少．（4）路程=速度×时间，代入数据即可．解：（1）306×4=1224（人）；答：女工有1224人．（2）203×6=1218（个）；答：一共运来1218个苹果．（3）140×8=1120（个）；答：这篇文章有1120个字．（4）160×5=800（千米）；答：5小时大约行800千米．点评：本题主要考查了学生根据乘法的意义解答问题的能力．40.用竖式计算．23×3= 38×5= 326×6= 517×4=304×4= 260×7= 805×9=【答案】69,190,1956,2068,1216,1820,7245【解析】利用整数乘法法则直接列竖式计算即可．解：23×3=69；38×5=190；326×6=1956；517×4=2068；304×4=1216；260×7=1820；805×9=7245；点评：解答注意题目中相乘的数字注意对应在什么数位上．41.青山小学组织330名学生去春游，租了6辆汽车，已知每辆车上能坐56人，请问租6辆汽车够吗？【答案】够【解析】首先求出6辆汽车能坐多少人，再进一步与学生总人数比较得出结论．解：56×6=336（人），336＞330，所以租6辆汽车够．答：租6辆汽车够．点评：解答此题注意利用整数乘法的意义：求几个相同加数和的简便运算．42.一盏台灯98元，买这样的5盏台灯大约需要元．【答案】500【解析】一盏台灯98元，根据乘法的意义可知，买这样的5盏台灯大约需要：98×5元，可按100×5进行估算．解：98×5≈500（元）．答：买这样的5盏台灯大约需要500元．点评：根据乘法的意义可知，单价×购买的数量=所需钱数．完成本题要注意是求大约需要多少钱，因此对结果进行估算即可．43.先估后算．例：2.96×32=？估：3×300=900算：2.96×32=94.72（1）8.29×9=（2）18.3×22=（3）0.83×19=【答案】72，74.61；360，400.4；19，15.77【解析】在小数乘法的估算中，一般要把小数看作整数来进行计算，在8.29×9中，要把8.29看作8，18.3看作18，要把0.83看作1来进行计算，据此解答．（1）8.29×9，估：8×9=72；算：8.29×9=74.61；（2）18.3×22，18×20=360，18.2×22=400.4；（3）0.83×19，1×19=19；0.83×19=15.77．点评：本题考查了学生小数乘法的估算能力．还考查了小数乘法的计算方法．根据小数乘法的计算法则进行解答即可．44. ,口算．90×60= 180×30= 110×20=79×51≈ 48×52≈19×301≈【答案】5400,5400,2200,4000,2500,6000【解析】根据整数乘法的计算方法和估算方法进行解答．解：90×60=5400， 180×30=5400， 110×20=2200，79×51≈4000，48×52≈2500，19×301≈6000．点评：口算时，注意运算符号和数据，然后再进一步计算．45.如果每个看台的座位数相同，你能估计出这个体育场的座位数吗？【答案】18000个【解析】由题意可知，这个体育场一共有28个看台，每个看台有22排，每排有32个座位，根据乘法的意义，先求出每个看台有多少个座位，再求这个体育场一共有多少个座位，再根据乘法的估算方法，利用“四舍五入”法，把因数分别看作与它接近的整十数，然后进行口算即可．解：32×22×28≈18000（个），答：这个体育场大约有18000个座位．点评：此题考查的目的是掌握整数乘法的估算方法．46.你会估算72×18吗？看看下面三名同学是怎么想的，请把他们的方法补充完整．72≈，18≈，×=，所以72×18≈．72≈，×18=，所以72×18≈．18≈，72×=，所以72×18≈．估算两位数乘两位数，可以把两个数都看成数去估算，也可以把其中的一个数看成数去估算．【答案】70，20，70，20，1400，1400；70，70，1260，1260；20，20，1440，1440；整十，整十【解析】在整数乘法估算中一般要根据“四舍五入”法，把因数看作整十，整百，或几百几十…的数来进行计算，据此解答．解：72≈70，18≈20，70×20=1400，所以72×18≈1400．72≈70，70×18=1260，所以72×18≈1260．18≈20，72×20=1440，所以72×18≈1440．估算两位数乘两位数，可以把两个数都看成整十数去估算，也可以把其中的一个数看成整十数去估算．故答案为：70，20，70，20，1400，1400；70，70，1260，1260；20，20，1440，1440；整十，整十．点评：此题主要靠估算的多种方法，一般把其中的因数看成与之相近的整十、整百数．47.32×78≈29×38≈112×34≈94×52≈87×213≈61×89≈304×37≈51×204≈632×97≈83×420≈42×125≈501×31≈128×91≈85×228≈49×89≈【答案】2400，1200，3300，4500，18900，5400，12000，10000，63000，33600，5200，15000，11700，20700，4500【解析】根据整数乘法估算方法：把相乘的数看成最接近它的整十数或整百整十数相乘．解：（1）32×78，≈30×80，=2400；（2）29×38，≈30×40，=1200；（3）112×34，≈110×30，=3300；（4）94×52，≈90×50，=4500；（5）87×213，≈90×210，=18900；（6）61×89，≈60×90，=5400；（7）304×37，≈300×40，=12000；（8）51×204，≈50×200，=10000；（9）632×97，≈630×100，=63000；（10）83×420，≈80×420，=33600；（11）42×125，≈40×130，=5200；（12）501×31，≈500×30，=15000；（13）128×91，≈130×90，=11700；（14）85×228，≈90×230，=20700；（15）49×89，≈50×90，=4500．故答案为：2400，1200，3300，4500，18900，5400，12000，10000，63000，33600，5200，15000，11700，20700，4500．点评：此题注意整数乘法估算方法和积末尾添0个数．48.先估算，再计算．233÷34= 351÷58= 272÷34=840÷35= 630÷31= 252÷36=【答案】6,6…29；6，6…3；9,8；21,24；21,20…10；6,7；【解析】先把被除数和除数看成和它接近的整十数，进行估算；在根据整数除法的笔算方法求解．解：233÷34≈240÷40=6；233÷34=6…29；634；351÷58≈360÷60=6；351÷58=6…3；658；272÷34≈270÷30=9；272÷34=8；834；840÷35≈840÷40=21；840÷35=24；2435；630÷31≈630÷30=21；630÷31=20…10；2031；252÷36≈240÷40=6；252÷36=7；736．点评：本题考查了除数是两位数的除法笔算和估算的方法，除法的估算不要有余数，笔算要注意把数位对齐．49.豆豆种了40棵月季花，每棵月季花大约有30粒种子，一共大约有多少粒月季花种子？【答案】1200粒【解析】依据种子总数=每棵月季花种子数×月季花棵数即可解答．解：30×40=1200（粒），答：一共大约有1200粒月季花种子．点评：等量关系式：种子总数=每棵月季花种子数×月季花棵数，是解答本题的依据，只要在题干中找到相应的数据，代入即可解答．50.如果两个两位数的因数末尾各有一个0，那么积的末尾（）A.一定有两个0B.两个或三个0C.一定有三个0【答案】B【解析】根据题意，假设这两个两位数是30和40，或50和20；分别求出它们的乘积，然后再进一步解答即可．解：根据题意，假设这两个两位数是30和40，或50和20；30×40=1200；50×20=1000；1200的末尾有两个0，1000的末尾有三个0；所以，如果两个两位数的因数末尾各有一个0，那么积的末尾有两个或三个0．故选：B．点评：根据题意，用赋值法能比较容易解决此类问题．51.一个因数的末尾有2个0，另一个因数的末尾有1个0（不等于0），则积的末尾（）A．一定是3个0B．有2个0C．有1个0D．至少有3个0【答案】D【解析】一个因数末尾有两个零，另一个因数末尾有1个0，根据因数末尾有零的乘法的计算法则可知，可以先把末尾有零的因数的零前面的数相乘，然后在乘得的积的后面加上3个零，所以积的末尾至少有3个0．解：一个因数末尾有2个零，另一个因数末尾有1个0，所以一共有3个0；可以先把这个末尾有零的因数的零前面的数与另一个因数零前面的数相乘，然后在乘得的积的后面加上3个零，所以积的末尾至少有3个0．故选：D．点评：整数末尾有0的乘法：可以先把0前面的数相乘，然后看各因数的末尾一共有几个0，就在乘得的数的末尾添写几个0．52.一袋大米重50千克，80袋这样的大米重（）A.400吨B.4000千克C.4000克【答案】B【解析】求80袋这样的大米有多重，也就是求80个50千克是多少，根据整数乘法的意义，用乘法计算．解：50×80=4000（千克）；答：80袋这样的大米重4000千克．故选：B．点评：此题考查整数乘法的意义：求几个相同加数和的简便运算．53.不计算，比较大小，879×5（）879×8．A.＞B.=C.＜【答案】C【解析】根据乘法的意义可知，在乘法算式中，其中的一个因数不变，另一个因数越大，其积就越大；据此判断．解：由于5＜8，根据乘法的意义可知，879×5＜879×8．故选：C．点评：在乘法算式中，因数越大，其积就越大．54. 389×9的积的个位上的数字是（）A.2B.3C.1【答案】C【解析】用两个因数个位上的数字相乘，得到乘积的个位数就是389×9的积的个位上的数字．解：389个位的数字是9，第二个因数是9；9×9=81，乘积的个位数是1．所以389×9的积的个位上的数字是1．故选：C．点评：两个整数相乘，乘积的个位数字，就是它们个位上的数字相乘得到的乘积个位数．55.下面两数相乘，积最接近2000的是（）A.500×5B.249×7C.385×5【答案】C【解析】本题可通过估算进行确定哪个选项中的积最接近2000．249×7可按200×7进行估算，385×5可按400×5进行估算．解：由于500×5=2500，249×7≈1400；385×5≈2000．即选项C中算式的积最接近2000．故选：C．点评：在估算完成乘法算式时，取近似值的方法有进一法，取整法，去尾法，四舍五入法等，完成时要根据式中数据的特点采用合适的方法取值．56.下列式子中，积中间有零的是（）A．105×4B．103×7C．701×2D．250×3【答案】C【解析】运算出选项中算式的结果，再判断求解．解：A，105×4=420；积的中间没有0；B，103×7=721；积的中间没有0；C，701×2=1402；积的中间有0；D，250×3=750；积的中间没有0；故选：C．点评：本题主要考查了三位数乘一位数时，因数中间有0的乘法的计算方法．57.直接写出得数13×20= 50×21= 50×30= 140÷2=70×15= 240÷3= 30×600= 2400÷6=370﹣50= 43×80=．【答案】260，1050，1500，70，1050，80，18000，400，320，3440【解析】根据整数的乘法和除法的计算法则计算解答．解：13×20=260 50×21=1050 50×30=1500 140÷2=7070×15=1050 240÷3=80 30×600=18000 2400÷6=400370﹣50=320 43×80=3440故答案为：260，1050，1500，70，1050，80，18000，400，320，3440．点评：本题主要考查整数的乘法和除法的计算方法，注意当整十数同整十、整百、整千的数相乘时，先把整十和整百数“0”前面的数相乘，再看因数中共有几个0，就在乘积的末尾添上几个“0”．58.①528×367 ②485×126③460×120 ④284×302⑤580×257 ⑥130×105．【答案】193776，61110，55200，85768，149060，13650【解析】根据整数乘法竖式计算的方法进行计算．解：①528×367=193776②485×126=61110③460×120=55200④284×302=85768⑤580×257=149060⑥130×105=13650点评：考查了整数乘法的笔算，根据其计算方法进行计算．59.用竖式计算：47×38 45×24 43×7228×72 55×44 18×18．【答案】1786,1080,3096,2044,2420,324【解析】整数乘法计算法则：先用一个因数每一位上的数分别去乘另一个因数各个数位上的数，用因数哪一位上的数去乘，乘得的数的末尾就对齐哪一位，哪一位上乘得的满十，就向前一位进一，然后把各次乘得的数加起来，据此解答．解：47×38=1786，45×24=1080，43×72=3096，28×73=2044，55×44=2420，18×18=324，点评：本题主要考查整数乘法的计算法则．注意从被乘数的个位乘起；哪一位上乘得的满十，就向前一位进一．60.明明说“我每分钟大约打41个字”，5分钟能打多少个字？【答案】205个【解析】根据题意知，每分钟大约打41个字，5分钟能打的字数，就是求5个41是多少，据此解答．解：41×5=205（个）；答：能打205个字．点评：本题要根据乘法的意义进行解答．61.每个同学发7本书，全班有54个同学，大约要发多少本书？【答案】350本【解析】根据题意，就是求7个54大约是，可以把54看作50，然后再进一步解答即可．解：根据题意可得：54×7，≈50×7，=350（本）；答：大约要发350本书．点评：此题考查了整数乘法的意义和估算方法．62.李叔叔4天大约能检测多少个零件？【答案】800个【解析】李叔叔4天大约能检测，4个232个零件，把232看作200，然后再进一步解答．解：232×4≈800（个）．答：李叔叔4天大约能检测800个零件．点评：三位数乘一位数的估算．把三位数看作与它接近的整百数，然后再进一步解答．63.向阳花园新建8幢楼房，每幢楼房住104户，新建的楼房一共能住多少户？【答案】832户【解析】要求这座楼房一共可以住多少户，根据乘法的意义，直接列式为104×8即可解答．解：104×8=832（户），答：一共能住832户．点评：此题属于整数乘法意义的实际应用，求几个相同加数的和的简便运算叫做乘法．64.一只青蛙每天吃害虫108只，这只青蛙一星期能消灭害虫多少只？【答案】756只【解析】求“这只青蛙一星期能消灭害虫多少”，就是求7个108是多少．据此解答．解：一星期=7天，108×7=756（只）．答：这只青蛙一星期能消灭害虫756只．点评：本题主要考查了学生根据乘法的意义列式解答问题的能力．65.列竖式计算．457×3 663×5 534×7 625×4 908×5 890×3【答案】1425,3315,3738,2500,4540,2670【解析】根据三位数乘一位数竖式的计算方法求解．解：（1）475×3=1425；（2）663×5=3315；（3）534×7=3738；（4）625×4=2500；（5）908×5=4540；（6）890×3=2670；点评：本题考查了竖式计算的方法，要注意数位对齐情况，注意因数中间或末尾有“0”的情况．66.笔算下列各题．32×75= 35×19= 27×42=【答案】2400,665,1134【解析】根据整数乘法竖式计算的方法进行计算即可．解：32×75=240035×19=66527×42=1134点评：本题主要考查整数乘法的笔算，根据其计算方法进行计算即可．67. 320+330+340+350=×．【答案】335，4【解析】先把320+330+340+350变成几个相同加数相加的形式，然后根据乘法的意义写成乘法算式．解：320+330+340+350，=（335﹣15）+（335﹣5）+（335+5）+（335+15），=（335+335+335+335）+（5﹣5+15﹣15），=335+335+335+335，=335×4．故答案为：335，4．点评：解决本题关键是把算式变成几个相同加数相加的形式，再根据乘法的意义求解．68.直接写出得数100×10= 90×8= 120×5= 440÷40=480÷8= 25×4= 354﹣99= 150×60=28÷7×5= 48+32﹣24= 64÷8﹣8= 24+16×6=48+52÷4= 100﹣5×4= （57﹣27）÷3= 80﹣80÷4=【答案】1000,720,600,11,60,100,255,9000,20,56,0,120,61,80,10,60【解析】根据整数加减乘除法的计算方法进行解答即可．解：100×10=1000 90×8=720 120×5=600 440÷40=11480÷8=60 25×4=100 354﹣99=255 150×60=900028÷7×5=20 48+32﹣24=56 64÷8﹣8=0 24+16×6=12048+52÷4=61 100﹣5×4=80 （57﹣27）÷3=10 80﹣80÷4=60点评：此题考查了整数加减乘除法的口算方法，注意运算符号，认真计算即可．69.【答案】【解析】（1）27与十位上的1相乘的结果表示27个十，没有对齐数位；（2）73×4=292，3×4=12，没有向十位进1；（3）54×8=432，4×8=32，没有向十位进3；54×3=162，4×3=12，也是没有向上一位进1．解：根据题意可得：3道题目全错，正确的如下：点评：本题主要考查整数乘法竖式计算，然后根据题意进一步解答即可．70.直接写出答案．50×14= 33×6= 640﹣310=6×130= 830+70= 250×20=280×5= 180×8= 600×6=420÷7= 65×40= 810÷9=【答案】700,198,330,780,900,5000,1400,1440,3600,60,2600,90【解析】根据整数加减乘除法的计算方法进行解答即可．解：50×14=700 33×6=198 640﹣310=3306×130=780 830+70=900 250×20=5000280×5=1400 180×8=1440 600×6=3600420÷7=60 65×40=2600 810÷9=90点评：口算时，注意运算符号和数据，然后再进一步计算即可．71.列式计算．（1）两个因数分别459和8，它们的积是多少？（2）168的7倍是多少？（3）3个210是多少？【答案】3672；1176；630【解析】（1）两个因数分别459和8，根据乘法算式的结构可知，它们的积是459×8；（2）根据乘法的意义可知，168的7倍是168×7；（3）根据乘法的意义可知，3个210是210×3．。
1000道简便运算 文档 (2)
300÷125÷8=300÷（125×8）=300÷1000=0.3396-96-172-28 =（396-96）-（172+28）= 300-200 = 100125*24 = 125*8*3 = 1000*3 = 300026*15 = （20+6）*15 = 20*15 + 6*15 = 300+90 =39025*99*4 = 25*4*99 = 100*99 = 9900250*32 = 250*4*8 = 1000*8 = 8000（98+98+98+98）*25 = 4*98*25 = 4*25*98 = 100*98 = 9800472*5*20 = 472*（5*20）= 472*100 = 47200125*（8+800）= 125*8+125*800 = 1000 + 100000 = 101000129*38+38*872-38 = 38*（129+872-1）=38*1000=3800018*8*125*5 = 18*5*（125*8）=90*1000 = 90001384-(450+384) = 1384-384-450 = 1000-450 = 55037*99 = 37*（100-1）= 37*100 - 37 = 3700-37=366382*98 = 82*（100-2）=8200- 164 = 8036202*28 = （200+2）*28 = 200*28+2*28 =5600+56 =565676*105 = 76*100 + 76*5 = 7600+380 = 798082*14+18*14 = 14*（82+18）=14*100=140069*99+69 = 69*（99+1）=69*100 = 690049×102－2×49 125×76×8 8.33－2.43－4.57103×32 6.7＋2.63＋4.3 41000÷8÷1255824÷8×（85－78）840÷28＋70×1840乘13乘25 480除以32 120除以5除以438乘201 45乘97-7乘45 21乘41减2135乘22加35乘36+35乘22 44乘198 125乘25乘8乘4095乘53加53 99乘125 45乘101减45138－43－57－381．498＋3972．502－3993．63－45－55＋1374．125×565．302×99＋3026．145×89＋145×211、475＋254＋3612、615＋475＋1253、860－168＋1594、465＋358－275、647－（85＋265）6、476＋（65－29）7、154×8÷168、400÷25×759、16×25÷16×2510、552÷69×8 11、600－120÷10 12、（600－120）÷10 13、（466－25×4）÷6 14、（43+32）÷（357－352）15、138＋（27＋48）÷25 16、56×19＋25×8二、用简便方法计算。
1000道简便运算 文档 (2)
300÷125÷8=300÷（125×8）=300÷1000=0.3396-96-172-28 =（396-96）-（172+28）= 300-200 = 100125*24 = 125*8*3 = 1000*3 = 300026*15 = （20+6）*15 = 20*15 + 6*15 = 300+90 =39025*99*4 = 25*4*99 = 100*99 = 9900250*32 = 250*4*8 = 1000*8 = 8000（98+98+98+98）*25 = 4*98*25 = 4*25*98 = 100*98 = 9800472*5*20 = 472*（5*20）= 472*100 = 47200125*（8+800）= 125*8+125*800 = 1000 + 100000 = 101000129*38+38*872-38 = 38*（129+872-1）=38*1000=3800018*8*125*5 = 18*5*（125*8）=90*1000 = 90001384-(450+384) = 1384-384-450 = 1000-450 = 55037*99 = 37*（100-1）= 37*100 - 37 = 3700-37=366382*98 = 82*（100-2）=8200- 164 = 8036202*28 = （200+2）*28 = 200*28+2*28 =5600+56 =565676*105 = 76*100 + 76*5 = 7600+380 = 798082*14+18*14 = 14*（82+18）=14*100=140069*99+69 = 69*（99+1）=69*100 = 690049×102－2×49 125×76×8 8.33－2.43－4.57103×32 6.7＋2.63＋4.3 41000÷8÷1255824÷8×（85－78）840÷28＋70×1840乘13乘25 480除以32 120除以5除以438乘201 45乘97-7乘45 21乘41减2135乘22加35乘36+35乘22 44乘198 125乘25乘8乘4095乘53加53 99乘125 45乘101减45138－43－57－381．498＋3972．502－3993．63－45－55＋1374．125×565．302×99＋3026．145×89＋145×211、475＋254＋3612、615＋475＋1253、860－168＋1594、465＋358－275、647－（85＋265）6、476＋（65－29）7、154×8÷168、400÷25×759、16×25÷16×2510、552÷69×8 11、600－120÷10 12、（600－120）÷10 13、（466－25×4）÷6 14、（43+32）÷（357－352）15、138＋（27＋48）÷25 16、56×19＋25×8二、用简便方法计算。
小学数学乘法分配律习题
乘法分配律乘法结合律乘法交换律加法结合律(a+b)×c=a×c+b×c (a×b)×c=a×(b×c) a×b=b×a (a+b)+c=a+(b+c)乘法分配律练习题138×62+38×38 75×14—70×14 101×3812×98 55×99+55 55×9912×29+12 58×199+58 42×79+4252×89 69×101—69 55×21—55125×（80+8）125×（80×8）125×32×2599×99+99 38×7+31×14 25×46+50×2779×25+22×25—25乘法分配律练习题2一、选择。
下面4组式子中，哪道式子计算较简便？把算式前面的序号填在括号里。
1、①（36+64）×13与②36×13+64×13（）2、①135×15+65×15与②（135+65）×15（）3、①101×45与②100×45+1×45（）4、①125×842与②125×800+125×40+125×2（）二、判断下面的5组等式，应用乘法分配律用对的打“√”，应用错的打“×”1、（7+8+9）×10=7×10+8×10+9（）2、12×9+3×9 = 12+3×9（）3、(25+50)×200 = 25×200+50（）4、101×63=100×63+63（）5、98 ×15= 100 × 15 + 2 × 15（）三、用简便方法计算下面各题。
口算题 (乘法交换律和结合律) 1000题
8 × 125 × 8 = 25 × 73 × 4 = 25 × 84 × 4 = 86 × 25 × 4 = 88 × 25 × 4 = 17 × 25 × 4 = 25 × 47 × 4 = 38 × 25 × 4 = 25 × 25 × 4 = 125 × 5 × 8 = 42 × 25 × 4 = 8000 ÷ 8 ÷ 125 = 3000 ÷ 25 ÷ 4 = 14 × 25 × 4 = 25 × 91 × 4 = 6700 ÷ 25 ÷ 4 = 96 × 25 × 4 = 25 × 87 × 4 = 125 × 2 × 8 = 125 × 15 × 8 = 16000 ÷ 8 ÷ 125 = 13000 ÷ 25 ÷ 4 = 25 × 6 × 4 = 13000 ÷ 8 ÷ 125 = 5 × 125 × 8 = 25 × 66 × 4 = 2000 ÷ 25 ÷ 4 = 12000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 = 14 × 125 × 8 = 7 × 125 × 8 = 25 × 26 × 4 = 62 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 125 × 8 × 8 = 30 × 25 × 4 = 25 × 22 × 4 = 125 × 18 × 8 = 10000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 52 × 25 × 4 = 76 × 25 × 4 = 10000 ÷ 4 ÷ 25 =18 × 25 × 4 =15000 ÷ 8 ÷ 125 =练习范围： 月 日 姓名: 乘法交换律和结合律题数： 100 分 秒 成绩:25 × 59 × 4 =7800 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 = 18 × 125 × 8 =15 × 125 × 8 =7000 ÷ 125 ÷ 8 = 125 × 16 × 8 =1000 ÷ 125 ÷ 8 =7000 ÷ 25 ÷ 4 = 20000 ÷ 4 ÷ 25 =19000 ÷ 8 ÷ 125 =25 × 40 × 4 =25 × 75 × 4 =13 × 125 × 8 =11000 ÷ 8 ÷ 125 = 34 × 25 × 4 =10000 ÷ 125 ÷ 8 =20000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 =19 × 125 × 8 =7000 ÷ 8 ÷ 125 = 25 × 12 × 4 =10 × 125 × 8 =12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 =20000 ÷ 25 ÷ 4 = 3 × 125 × 8 =28 × 25 × 4 =10000 ÷ 25 ÷ 4 =3000 ÷ 125 ÷ 8 = 85 × 25 × 4 =25 × 60 × 4 =6600 ÷ 25 ÷ 4 = 24 × 25 × 4 =18000 ÷ 125 ÷ 8 =26 × 25 × 4 =20 × 125 × 8 = 6 × 125 × 8 =125 × 6 × 8 =74 × 25 × 4 =25 × 48 × 4 =20000 ÷ 8 ÷ 125 = 125 × 10 × 8 =19000 ÷ 125 ÷ 8 =25 × 98 × 4 = 125 × 17 × 8 =5900 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 4 × 125 × 8 =125 × 3 × 8 =12 × 25 × 4 =16 × 125 × 8 =3000 ÷ 4 ÷ 25 = 5500 ÷ 25 ÷ 4 =25 × 33 × 4 = 13000 ÷ 125 ÷ 8 = 25 × 79 × 4 = 18 × 25 × 4 = 20000 ÷ 125 ÷ 8 = 34 × 25 × 4 = 94 × 25 × 4 = 13 × 25 × 4 = 20 × 25 × 4 = 14 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 125 × 6 × 8 = 16 × 125 × 8 = 25 × 58 × 4 = 12000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 8000 ÷ 8 ÷ 125 = 125 × 16 × 8 = 11000 ÷ 8 ÷ 125 = 1000 ÷ 8 ÷ 125 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 13 × 125 × 8 = 125 × 2 × 8 = 3 × 25 × 4 = 800 ÷ 25 ÷ 4 = 62 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 5000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 20 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 2900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 4000 ÷ 125 ÷ 8 = 25 × 49 × 4 = 6300 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 18 × 8 = 2000 ÷ 8 ÷ 125 = 2 × 125 × 8 =96 × 25 × 4 =11000 ÷ 25 ÷ 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒8 × 125 × 8 =16000 ÷ 8 ÷ 125 =17 × 25 × 4 = 13000 ÷ 8 ÷ 125 =6700 ÷ 25 ÷ 4 = 4 × 125 × 8 = 11000 ÷ 4 ÷ 25 =4000 ÷ 25 ÷ 4 =125 × 19 × 8 = 3000 ÷ 125 ÷ 8 =9600 ÷ 25 ÷ 4 = 3 × 125 × 8 = 3000 ÷ 25 ÷ 4 =25 × 34 × 4 =25 × 98 × 4 =52 × 25 × 4 =25 × 59 × 4 =4000 ÷ 8 ÷ 125 = 15000 ÷ 4 ÷ 25 =25 × 43 × 4 =1700 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =25 × 60 × 4 =18 × 125 × 8 = 56 × 25 × 4 =7100 ÷ 25 ÷ 4 =19000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 =6000 ÷ 4 ÷ 25 =1600 ÷ 25 ÷ 4 = 11 × 25 × 4 =8400 ÷ 25 ÷ 4 =25 × 73 × 4 = 7000 ÷ 125 ÷ 8 =7000 ÷ 4 ÷ 25 = 6 × 25 × 4 = 9100 ÷ 25 ÷ 4 =19000 ÷ 4 ÷ 25 =17 × 125 × 8 = 9000 ÷ 125 ÷ 8 =19 × 125 × 8 =25 × 5 × 4 =25 × 12 × 4 =20000 ÷ 4 ÷ 25 =125 × 5 × 8 = 10000 ÷ 8 ÷ 125 =54 × 25 × 4 =25 × 91 × 4 = 14000 ÷ 4 ÷ 25 =125 × 4 × 8 =25 × 92 × 4 =25 × 26 × 4 = 4 × 25 × 4 =16000 ÷ 125 ÷ 8 = 15 × 25 × 4 =10 × 125 × 8 = 28 × 25 × 4 = 6500 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 15 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 125 × 20 × 8 = 14000 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 16 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 14 × 8 = 25 × 48 × 4 = 9 × 125 × 8 = 125 × 6 × 8 = 25 × 36 × 4 = 125 × 5 × 8 = 125 × 18 × 8 = 25 × 79 × 4 = 25 × 60 × 4 = 125 × 4 × 8 = 25 × 32 × 4 = 3000 ÷ 4 ÷ 25 = 25 × 61 × 4 = 125 × 7 × 8 = 74 × 25 × 4 = 125 × 19 × 8 = 8000 ÷ 8 ÷ 125 = 72 × 25 × 4 = 800 ÷ 25 ÷ 4 = 8 × 25 × 4 = 19 × 125 × 8 = 25 × 59 × 4 = 125 × 9 × 8 = 3000 ÷ 25 ÷ 4 = 5 × 125 × 8 = 2 × 125 × 8 = 6 × 125 × 8 = 25 × 92 × 4 = 4 × 125 × 8 = 1900 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 =13000 ÷ 4 ÷ 25 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒125 × 10 × 8 =2000 ÷ 4 ÷ 25 =17 × 25 × 4 = 15000 ÷ 125 ÷ 8 =15000 ÷ 4 ÷ 25 =17 × 125 × 8 = 7000 ÷ 25 ÷ 4 =10000 ÷ 8 ÷ 125 =25 × 40 × 4 =20 × 125 × 8 =8000 ÷ 4 ÷ 25 =125 × 13 × 8 = 18 × 25 × 4 =18 × 125 × 8 =4000 ÷ 125 ÷ 8 = 4000 ÷ 25 ÷ 4 =1000 ÷ 8 ÷ 125 =7300 ÷ 25 ÷ 4 = 1000 ÷ 125 ÷ 8 =12000 ÷ 8 ÷ 125 =19000 ÷ 125 ÷ 8 = 77 × 25 × 4 =67 × 25 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 125 ÷ 8 =25 × 39 × 4 =6000 ÷ 8 ÷ 125 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =25 × 58 × 4 = 16000 ÷ 8 ÷ 125 =20000 ÷ 4 ÷ 25 =25 × 43 × 4 = 7000 ÷ 125 ÷ 8 =25 × 89 × 4 =25 × 99 × 4 =12 × 25 × 4 =25 × 26 × 4 =5100 ÷ 25 ÷ 4 = 5900 ÷ 25 ÷ 4 =25 × 52 × 4 =19000 ÷ 8 ÷ 125 = 25 × 17 × 4 =24 × 25 × 4 =18000 ÷ 125 ÷ 8 = 25 × 16 × 4 =2400 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 =12 × 125 × 8 =25 × 73 × 4 =25 × 66 × 4 =3000 ÷ 125 ÷ 8 =25 × 34 × 4 =3 × 125 × 8 =13000 ÷ 8 ÷ 125 = 25 × 79 × 4 = 25 × 23 × 4 = 125 × 5 × 8 = 8000 ÷ 4 ÷ 25 = 40 × 25 × 4 = 17 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 48 × 4 = 125 × 16 × 8 = 25 × 43 × 4 = 25 × 59 × 4 = 19000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 25 × 52 × 4 = 87 × 25 × 4 = 125 × 19 × 8 = 25 × 19 × 4 = 2000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 17000 ÷ 25 ÷ 4 = 51 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 5600 ÷ 25 ÷ 4 = 12 × 25 × 4 = 8 × 125 × 8 = 25 × 40 × 4 = 9300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 38 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 5 × 25 × 4 = 14 × 125 × 8 = 125 × 9 × 8 = 25 × 26 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 16000 ÷ 4 ÷ 25 = 5000 ÷ 25 ÷ 4 = 25 × 73 × 4 = 17000 ÷ 4 ÷ 25 =18000 ÷ 125 ÷ 8 =800 ÷ 25 ÷ 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒125 × 4 × 8 =2800 ÷ 25 ÷ 4 =7000 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =26 × 25 × 4 =3000 ÷ 125 ÷ 8 = 25 × 27 × 4 =84 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 58 × 4 =4500 ÷ 25 ÷ 4 =3600 ÷ 25 ÷ 4 = 11000 ÷ 25 ÷ 4 =20 × 125 × 8 =77 × 25 × 4 =46 × 25 × 4 =13000 ÷ 125 ÷ 8 =18 × 25 × 4 = 10000 ÷ 4 ÷ 25 =9500 ÷ 25 ÷ 4 =24 × 25 × 4 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =15 × 125 × 8 = 13 × 125 × 8 =4000 ÷ 25 ÷ 4 =74 × 25 × 4 =25 × 34 × 4 =5900 ÷ 25 ÷ 4 =125 × 20 × 8 = 17 × 125 × 8 =11000 ÷ 8 ÷ 125 =8 × 25 × 4 = 15000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =18 × 125 × 8 = 25 × 70 × 4 =8600 ÷ 25 ÷ 4 = 4 × 125 × 8 = 10000 ÷ 25 ÷ 4 =6400 ÷ 25 ÷ 4 =25 × 45 × 4 =96 × 25 × 4 =72 × 25 × 4 =9 × 25 × 4 =42 × 25 × 4 =19000 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 25 × 5 × 4 =7800 ÷ 25 ÷ 4 =25 × 91 × 4 =125 × 2 × 8 =71 × 25 × 4 = 3000 ÷ 4 ÷ 25 =7000 ÷ 4 ÷ 25 =3000 ÷ 125 ÷ 8 = 25 × 33 × 4 = 14000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 2000 ÷ 8 ÷ 125 = 6200 ÷ 25 ÷ 4 = 25 × 75 × 4 = 2600 ÷ 25 ÷ 4 = 25 × 44 × 4 = 125 × 18 × 8 = 25 × 48 × 4 = 12 × 25 × 4 = 2000 ÷ 125 ÷ 8 = 8800 ÷ 25 ÷ 4 = 13 × 125 × 8 = 85 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 18000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 62 × 25 × 4 = 19000 ÷ 125 ÷ 8 = 6700 ÷ 25 ÷ 4 = 25 × 58 × 4 = 3900 ÷ 25 ÷ 4 = 96 × 25 × 4 = 19 × 125 × 8 = 8000 ÷ 125 ÷ 8 = 12000 ÷ 125 ÷ 8 = 74 × 25 × 4 = 13000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 1000 ÷ 8 ÷ 125 = 4 × 125 × 8 = 8 × 25 × 4 = 7500 ÷ 25 ÷ 4 = 7000 ÷ 8 ÷ 125 = 25 × 92 × 4 = 42 × 25 × 4 = 12 × 125 × 8 = 12000 ÷ 8 ÷ 125 = 6 × 125 × 8 = 125 × 8 × 8 = 125 × 20 × 8 =7 × 125 × 8 =25 × 32 × 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒5000 ÷ 25 ÷ 4 =58 × 25 × 4 =4000 ÷ 125 ÷ 8 = 10 × 125 × 8 =11000 ÷ 125 ÷ 8 =25 × 12 × 4 = 6000 ÷ 125 ÷ 8 =11000 ÷ 8 ÷ 125 =25 × 13 × 4 = 7000 ÷ 25 ÷ 4 =25 × 49 × 4 =125 × 11 × 8 = 14 × 25 × 4 =17000 ÷ 125 ÷ 8 =25 × 35 × 4 = 8200 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =20 × 125 × 8 = 11 × 125 × 8 =6000 ÷ 4 ÷ 25 =25 × 2 × 4 =125 × 7 × 8 =125 × 4 × 8 =10000 ÷ 8 ÷ 125 = 125 × 9 × 8 =16 × 125 × 8 =32 × 25 × 4 = 5000 ÷ 125 ÷ 8 =25 × 28 × 4 =8000 ÷ 8 ÷ 125 = 54 × 25 × 4 =6100 ÷ 25 ÷ 4 =125 × 12 × 8 = 77 × 25 × 4 =29 × 25 × 4 =25 × 66 × 4 =66 × 25 × 4 =25 × 76 × 4 =25 × 5 × 4 =15 × 125 × 8 =78 × 25 × 4 =10000 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =52 × 25 × 4 =25 × 60 × 4 =17 × 25 × 4 =14000 ÷ 8 ÷ 125 =18000 ÷ 125 ÷ 8 = 6400 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 =8000 ÷ 4 ÷ 25 =2000 ÷ 4 ÷ 25 =3000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 =125 × 5 × 8 =1000 ÷ 125 ÷ 8 = 18000 ÷ 125 ÷ 8 = 24 × 25 × 4 = 6 × 125 × 8 = 125 × 13 × 8 = 3 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 18000 ÷ 8 ÷ 125 = 25 × 59 × 4 = 80 × 25 × 4 = 18 × 25 × 4 = 4 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 64 × 25 × 4 = 25 × 34 × 4 = 46 × 25 × 4 = 5600 ÷ 25 ÷ 4 = 5 × 25 × 4 = 25 × 4 × 4 = 16000 ÷ 125 ÷ 8 = 125 × 9 × 8 = 25 × 73 × 4 = 11000 ÷ 4 ÷ 25 = 65 × 25 × 4 = 25 × 49 × 4 = 125 × 6 × 8 = 16000 ÷ 8 ÷ 125 = 7000 ÷ 4 ÷ 25 = 19 × 125 × 8 = 25 × 12 × 4 = 5000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 3000 ÷ 125 ÷ 8 = 12 × 25 × 4 = 125 × 4 × 8 = 88 × 25 × 4 = 92 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 87 × 25 × 4 =2600 ÷ 25 ÷ 4 =125 × 2 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒25 × 66 × 4 =34 × 25 × 4 =23 × 25 × 4 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =28 × 25 × 4 = 5000 ÷ 8 ÷ 125 =25 × 43 × 4 =125 × 7 × 8 = 20000 ÷ 25 ÷ 4 =13000 ÷ 8 ÷ 125 =8000 ÷ 4 ÷ 25 = 16 × 125 × 8 = 3 × 125 × 8 =1000 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 =54 × 25 × 4 =125 × 15 × 8 = 25 × 40 × 4 =18000 ÷ 4 ÷ 25 =2500 ÷ 25 ÷ 4 = 9 × 125 × 8 =7000 ÷ 8 ÷ 125 =12 × 125 × 8 = 91 × 25 × 4 =16000 ÷ 4 ÷ 25 =125 × 19 × 8 = 12000 ÷ 4 ÷ 25 =3900 ÷ 25 ÷ 4 =3000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 =62 × 25 × 4 =8 × 125 × 8 = 25 × 92 × 4 =20000 ÷ 4 ÷ 25 =25 × 79 × 4 = 25 × 38 × 4 =3000 ÷ 4 ÷ 25 =7000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 =25 × 91 × 4 =4300 ÷ 25 ÷ 4 = 10000 ÷ 4 ÷ 25 =99 × 25 × 4 =9000 ÷ 125 ÷ 8 = 17 × 25 × 4 =19000 ÷ 4 ÷ 25 =25 × 27 × 4 = 6700 ÷ 25 ÷ 4 =14000 ÷ 125 ÷ 8 =125 × 11 × 8 = 25 × 48 × 4 =25 × 58 × 4 =14000 ÷ 4 ÷ 25 = 70 × 25 × 4 =125 × 18 × 8 = 24 × 25 × 4 = 25 × 72 × 4 = 18000 ÷ 125 ÷ 8 = 125 × 2 × 8 = 9 × 125 × 8 = 27 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 5400 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 54 × 25 × 4 = 125 × 16 × 8 = 3400 ÷ 25 ÷ 4 = 16 × 125 × 8 = 25 × 79 × 4 = 125 × 19 × 8 = 42 × 25 × 4 = 125 × 8 × 8 = 8 × 25 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 3 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 25 × 36 × 4 = 16000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 12000 ÷ 4 ÷ 25 = 5 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 3 × 125 × 8 = 73 × 25 × 4 = 800 ÷ 25 ÷ 4 = 41 × 25 × 4 = 5 × 125 × 8 = 48 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 43 × 4 = 15000 ÷ 8 ÷ 125 =68 × 25 × 4 =13 × 125 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒10000 ÷ 125 ÷ 8 =6000 ÷ 8 ÷ 125 =47 × 25 × 4 =25 × 71 × 4 =1000 ÷ 25 ÷ 4 =25 × 48 × 4 =34 × 25 × 4 =9500 ÷ 25 ÷ 4 =19 × 125 × 8 = 17 × 25 × 4 =10000 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 15 × 8 =10000 ÷ 4 ÷ 25 =67 × 25 × 4 = 125 × 5 × 8 =25 × 74 × 4 =125 × 10 × 8 = 15000 ÷ 125 ÷ 8 =125 × 13 × 8 =11 × 125 × 8 = 25 × 34 × 4 =16 × 25 × 4 =25 × 60 × 4 = 125 × 7 × 8 =19000 ÷ 125 ÷ 8 =8300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 =8 × 125 × 8 =12 × 25 × 4 = 3000 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =14000 ÷ 8 ÷ 125 = 125 × 17 × 8 =6700 ÷ 25 ÷ 4 =84 × 25 × 4 =25 × 80 × 4 =10000 ÷ 8 ÷ 125 =12000 ÷ 8 ÷ 125 = 25 × 75 × 4 =62 × 25 × 4 =9000 ÷ 8 ÷ 125 = 87 × 25 × 4 =125 × 6 × 8 =77 × 25 × 4 =25 × 26 × 4 =25 × 13 × 4 = 6 × 125 × 8 =25 × 92 × 4 =46 × 25 × 4 =7900 ÷ 25 ÷ 4 = 85 × 25 × 4 =125 × 9 × 8 =1000 ÷ 8 ÷ 125 = 25 × 98 × 4 =5 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 9000 ÷ 125 ÷ 8 = 2000 ÷ 8 ÷ 125 = 74 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 20000 ÷ 125 ÷ 8 = 25 × 66 × 4 = 13 × 125 × 8 = 51 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 74 × 4 = 6000 ÷ 4 ÷ 25 = 5000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 62 × 25 × 4 = 25 × 26 × 4 = 125 × 3 × 8 = 25 × 60 × 4 = 25 × 73 × 4 = 46 × 25 × 4 = 25 × 40 × 4 = 25 × 37 × 4 = 5000 ÷ 125 ÷8 = 25 × 35 × 4 = 4000 ÷ 8 ÷ 125 = 6000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 16000 ÷ 125 ÷ 8 = 10000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 5800 ÷ 25 ÷ 4 = 15 × 125 × 8 = 25 × 34 × 4 = 24 × 25 × 4 = 6700 ÷ 25 ÷ 4 = 125 × 16 × 8 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 77 × 25 × 4 =20 × 125 × 8 =4000 ÷ 125 ÷ 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒18 × 125 × 8 =3000 ÷ 4 ÷ 25 =25 × 43 × 4 =25 × 91 × 4 =3000 ÷ 125 ÷ 8 =90 × 25 × 4 = 16000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 =15000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 =2000 ÷ 4 ÷ 25 = 4 × 125 × 8 =87 × 25 × 4 =12000 ÷ 8 ÷ 125 =800 ÷ 25 ÷ 4 = 10000 ÷ 125 ÷ 8 =25 × 88 × 4 =19 × 125 × 8 = 16 × 25 × 4 =125 × 2 × 8 =125 × 14 × 8 = 6100 ÷ 25 ÷ 4 =96 × 25 × 4 =7000 ÷ 125 ÷ 8 = 25 × 75 × 4 =300 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 =125 × 5 × 8 =55 × 25 × 4 =25 × 92 × 4 =25 × 6 × 4 =7 × 125 × 8 =18 × 25 × 4 =25 × 48 × 4 =125 × 7 × 8 =11 × 125 × 8 =1000 ÷ 4 ÷ 25 =125 × 17 × 8 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =3300 ÷ 25 ÷ 4 = 25 × 12 × 4 =16000 ÷ 8 ÷ 125 =25 × 50 × 4 = 125 × 6 × 8 =125 × 10 × 8 =6000 ÷ 25 ÷ 4 = 38 × 25 × 4 =12000 ÷ 4 ÷ 25 =2000 ÷ 125 ÷ 8 = 6 × 125 × 8 =25 × 2 × 4 =2300 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =6000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 96 × 25 × 4 = 18 × 125 × 8 = 27 × 25 × 4 = 16000 ÷ 8 ÷ 125 = 1100 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 46 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 5600 ÷ 25 ÷ 4 = 20000 ÷ 25 ÷ 4 = 125 × 11 × 8 = 25 × 53 × 4 = 52 × 25 × 4 = 83 × 25 × 4 = 25 × 48 × 4 = 125 × 15 × 8 = 13 × 125 × 8 = 100 ÷ 25 ÷ 4 = 98 × 25 × 4 = 7000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 25 × 24 × 4 = 15000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 1000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 25 × 55 × 4 = 15 × 125 × 8 = 6400 ÷ 25 ÷ 4 = 8 × 25 × 4 = 54 × 25 × 4 = 25 × 67 × 4 = 16000 ÷ 4 ÷ 25 = 25 × 91 × 4 = 10000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 2000 ÷ 125 ÷ 8 = 125 × 9 × 8 =1000 ÷ 8 ÷ 125 =125 × 10 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒3000 ÷ 4 ÷ 25 =34 × 25 × 4 =3400 ÷ 25 ÷ 4 = 25 × 61 × 4 =125 × 12 × 8 =25 × 66 × 4 = 19000 ÷ 125 ÷ 8 =3000 ÷ 125 ÷ 8 =4000 ÷ 8 ÷ 125 = 9200 ÷ 25 ÷ 4 =25 × 79 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 8 ÷ 125 =62 × 25 × 4 =16 × 125 × 8 = 14 × 25 × 4 =25 × 56 × 4 =5000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 =25 × 73 × 4 =7800 ÷ 25 ÷ 4 = 25 × 20 × 4 =25 × 76 × 4 = 6 × 125 × 8 = 7000 ÷ 4 ÷ 25 =85 × 25 × 4 =125 × 16 × 8 = 8 × 125 × 8 =9000 ÷ 4 ÷ 25 =25 × 75 × 4 =17 × 25 × 4 =125 × 19 × 8 = 5 × 125 × 8 =18 × 25 × 4 =11000 ÷ 125 ÷ 8 =25 × 58 × 4 = 125 × 4 × 8 =25 × 95 × 4 =25 × 81 × 4 = 10000 ÷ 4 ÷ 25 =12000 ÷ 4 ÷ 25 =25 × 60 × 4 = 17 × 125 × 8 =11000 ÷ 4 ÷ 25 =87 × 25 × 4 = 18000 ÷ 4 ÷ 25 =3000 ÷ 25 ÷ 4 =125 × 5 × 8 = 25 × 52 × 4 =8200 ÷ 25 ÷ 4 = 5 × 25 × 4 =42 × 25 × 4 =600 ÷ 25 ÷ 4 = 8000 ÷ 125 ÷ 8 =14000 ÷ 4 ÷ 25 =19 × 125 × 8 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 16 × 8 = 3000 ÷ 125 ÷ 8 = 25 × 82 × 4 = 125 × 10 × 8 = 66 × 25 × 4 = 34 × 25 × 4 = 3700 ÷ 25 ÷ 4 = 25 × 56 × 4 = 15 × 125 × 8 = 14 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 19 × 8 = 25 × 40 × 4 = 13 × 125 × 8 = 3900 ÷ 25 ÷ 4 = 14000 ÷ 8 ÷ 125 = 8700 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 16000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 2000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 25 × 92 × 4 = 18000 ÷ 125 ÷ 8 = 6600 ÷ 25 ÷ 4 = 18000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 5 × 25 × 4 = 15000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 7700 ÷ 25 ÷ 4 = 800 ÷ 25 ÷ 4 = 5000 ÷ 125 ÷ 8 = 46 × 25 × 4 = 125 × 5 × 8 = 7000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 25 × 98 × 4 =67 × 25 × 4 =125 × 15 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒6700 ÷ 25 ÷ 4 =125 × 4 × 8 =39 × 25 × 4 =16 × 125 × 8 =125 × 3 × 8 =6000 ÷ 125 ÷ 8 = 1000 ÷ 4 ÷ 25 =125 × 12 × 8 =12 × 125 × 8 = 19000 ÷ 8 ÷ 125 =19000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 = 25 × 66 × 4 =19 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 78 × 4 =8400 ÷ 25 ÷ 4 =5000 ÷ 8 ÷ 125 = 25 × 58 × 4 =4400 ÷ 25 ÷ 4 =17000 ÷ 4 ÷ 25 = 13000 ÷ 4 ÷ 25 =25 × 73 × 4 =7 × 125 × 8 = 9000 ÷ 125 ÷ 8 =4100 ÷ 25 ÷ 4 =10000 ÷ 25 ÷ 4 = 63 × 25 × 4 =96 × 25 × 4 =125 × 11 × 8 = 18 × 25 × 4 =125 × 8 × 8 =25 × 34 × 4 = 13000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =83 × 25 × 4 =29 × 25 × 4 =4300 ÷ 25 ÷ 4 =6000 ÷ 4 ÷ 25 = 8 × 125 × 8 =25 × 75 × 4 =25 × 59 × 4 =17 × 25 × 4 =20000 ÷ 8 ÷ 125 =6400 ÷ 25 ÷ 4 = 74 × 25 × 4 =25 × 49 × 4 =25 × 48 × 4 =3 × 125 × 8 =25 × 93 ×4 =7000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 5 × 125 × 8 =200 ÷ 25 ÷ 4 = 125 × 2 × 8 =。
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1 331 × 876 = 289 × 156 = 661 × 984 = 590 × 947 = 413 × 596 = 371 × 687 = 490 × 918 = 817 × 865 = 899 × 468 = 691 × 873 = 233 × 179 = 259 × 823 = 741 × 446 = 987 × 236 = 667 × 496 = 812 × 548 = 767 × 675 = 17 × 707 = 189 × 517 = 22 × 315 = 124 × 709 = 639 × 54 = 914 × 303 = 570 × 403 = 533 × 789 = 217 × 851 = 596 × 891 = 82 × 109 = 360 × 187 = 321 × 41 = 340 × 919 = 236 × 319 = 496 × 606 = 752 × 23 = 149 × 307 = 194 × 653 = 48 × 652 = 877 × 338 = 267 × 7 = 345 × 162 = 844 × 360 = 274 × 896 = 346 × 815 = 353 × 592 = 760 × 784 = 688 × 771 = 419 × 243 = 522 × 212 = 840 × 658 = 312 × 554 = 2
686 × 453 = 479 × 202 = 246 × 107 = 359 × 280 = 116 × 259 = 159 × 602 = 965 × 907 = 853 × 183 = 108 × 831 = 604 × 925 = 402 × 363 = 451 × 578 = 104 × 756 = 326 × 835 = 589 × 147 = 901 × 822 = 77 × 338 = 483 × 268 = 933 × 509 = 486 × 553 = 355 × 824 = 404 × 250 = 477 × 174 = 444 × 990 = 213 × 524 = 258 × 814 = 352 × 640 = 436 × 303 = 739 × 123 = 681 × 156 = 556 × 37 = 842 × 44 = 18 × 579 = 226 × 845 = 32 × 545 = 855 × 649 = 608 × 570 = 610 × 108 = 69 × 375 = 394 × 5 = 359 × 510 = 789 × 169 = 828 × 59 = 517 × 124 = 839 × 656 = 263 × 849 = 516 × 513 = 157 × 585 = 645 × 66 = 660 × 799 = 3
154 × 573 = 919 × 220 = 409 × 293 = 79 × 584 = 936 × 753 = 69 × 767 = 970 × 223 = 411 × 6 = 534 × 753 = 851 × 209 = 934 × 386 = 837 × 602 = 878 × 394 = 180 × 156 = 614 × 672 = 404 × 573 = 763 × 614 = 618 × 796 = 790 × 115 = 925 × 262 = 253 × 530 = 689 × 417 = 277 × 727 = 192 × 197 = 912 × 561 = 485 × 473 = 304 × 411 = 486 × 700 = 840 × 614 = 599 × 231 = 708 × 921 = 427 × 60 = 520 × 330 = 362 × 962 = 941 × 895 = 105 × 262 = 482 × 397 = 399 × 719 = 886 × 946 = 548 × 280 = 777 × 921 = 492 × 649 = 491 × 814 = 495 × 942 = 266 × 865 = 756 × 891 = 209 × 587 = 470 × 342 = 715 × 542 = 137 × 23 = 4
256 × 976 = 189 × 824 = 714 × 179 = 203 × 76 = 680 × 662 = 264 × 534 = 394 × 539 = 270 × 111 = 240 × 693 = 225 × 517 = 970 × 607 = 821 × 359 = 98 × 958 = 853 × 392 = 90 × 339 = 257 × 920 = 331 × 712 = 831 × 586 = 991 × 468 = 934 × 27 = 242 × 171 = 696 × 128 = 482 × 384 = 547 × 872 = 496 × 161 = 118 × 3 = 726 × 65 = 791 × 996 = 62 × 839 = 475 × 75 = 840 × 73 = 363 × 240 = 964 × 475 = 760 × 570 = 311 × 622 = 256 × 257 = 860 × 285 = 782 × 121 = 214 × 693 = 381 × 588 = 413 × 345 = 691 × 369 = 254 × 227 = 492 × 306 = 488 × 550 = 810 × 146 = 615 × 364 = 425 × 209 = 160 × 649 = 784 × 192 = 5
622 × 763 = 655 × 588 = 525 × 333 = 38 × 462 = 214 × 968 = 154 × 556 = 344 × 391 = 544 × 977 = 231 × 850 = 576 × 931 = 471 × 927 = 914 × 249 = 517 × 97 = 743 × 690 = 121 × 638 = 790 × 256 = 828 × 780 = 451 × 984 = 930 × 159 = 554 × 992 = 561 × 977 = 579 × 711 = 844 × 459 = 350 × 577 = 286 × 456 = 526 × 656 = 804 × 322 = 418 × 921 = 100 × 421 = 942 × 194 = 258 × 860 = 741 × 958 = 784 × 327 = 788 × 550 = 473 × 120 = 787 × 752 = 697 × 630 = 676 × 725 = 863 × 311 = 652 × 405 = 987 × 600 = 533 × 589 = 372 × 752 = 977 × 864 = 181 × 749 = 681 × 886 = 300 × 824 = 643 × 530 = 253 × 93 = 637 × 439 = 6
877 × 593 = 876 × 531 = 802 × 380 = 915 × 710 = 914 × 528 = 92 × 244 = 221 × 147 = 47 × 569 = 794 × 773 = 131 × 492 = 706 × 752 = 728 × 19 = 138 × 457 = 815 × 311 = 74 × 468 = 280 × 488 = 269 × 63 = 812 × 273 = 388 × 629 = 415 × 697 = 511 × 864 = 811 × 378 = 411 × 858 = 326 × 71 = 283 × 431 = 14 × 504 = 851 × 336 = 84 × 721 = 11 × 176 = 937 × 417 = 440 × 151 = 338 × 996 = 852 × 991 = 532 × 354 = 803 × 697 = 350 × 587 = 235 × 926 = 605 × 155 = 164 × 149 = 316 × 192 = 205 × 936 = 563 × 969 = 837 × 979 = 22 × 754 = 589 × 698 = 465 × 517 = 563 × 563 = 796 × 258 = 972 × 476 = 386 × 913 = 7
622 × 822 = 786 × 82 = 480 × 61 = 96 × 61 = 790 × 948 = 539 × 920 = 380 × 770 = 49 × 599 = 89 × 180 = 898 × 266 = 495 × 506 = 687 × 417 = 354 × 642 = 216 × 456 = 427 × 875 = 58 × 731 = 618 × 257 = 868 × 277 = 595 × 384 = 734 × 724 = 305 × 702 = 97 × 137 = 82 × 675 = 64 × 743 = 232 × 448 = 148 × 797 = 301 × 846 = 717 × 67 = 429 × 842 = 736 × 665 = 465 × 819 = 554 × 230 = 772 × 271 = 817 × 657 = 880 × 777 = 798 × 912 = 426 × 371 = 666 × 612 = 39 × 661 = 532 × 392 = 98 × 311 = 279 × 278 = 535 × 734 = 499 × 553 = 107 × 131 = 77 × 853 = 791 × 198 = 213 × 469 = 265 × 150 = 934 × 100 =