最新小学四年级数学下册乘法练习题
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 =。
人教版小学四年级下册数学 同步练习-乘法运算定律 (带答案)
加油！有志者事竟成答卷时应注意事项１、拿到试卷，要认真仔细的先填好自己的考生信息。
２、拿到试卷不要提笔就写，先大致的浏览一遍，有多少大题，每个大题里有几个小题，有什么题型，哪些容易，哪些难，做到心里有底；３、审题，每个题目都要多读几遍，不仅要读大题，还要读小题，不放过每一个字，遇到暂时弄不懂题意的题目，手指点读，多读几遍题目，就能理解题意了；容易混乱的地方也应该多读几遍，比如从小到大，从左到右这样的题；４、每个题目做完了以后，把自己的手从试卷上完全移开，好好的看看有没有被自己的手臂挡住而遗漏的题；试卷第１页和第２页上下衔接的地方一定要注意，仔细看看有没有遗漏的小题；５、中途遇到真的解决不了的难题，注意安排好时间，先把后面会做的做完，再来重新读题，结合平时课堂上所学的知识，解答难题；一定要镇定，不能因此慌了手脚，影响下面的答题；６、卷面要清洁，字迹要清工整，非常重要；７、做完的试卷要检查，这样可以发现刚才可能留下的错误或是可以检查是否有漏题，检查的时候，用手指点读题目，不要管自己的答案，重新分析题意，所有计算题重新计算，判断题重新判断，填空题重新填空，之后把检查的结果与先前做的结果进行对比分析。
亲爱的小朋友，你们好! 经过两个月的学习，你们一定有不小的收获吧，用你的自信和智慧，认真答题，相信你一定会闯关成功。
相信你是最棒的！1人教版小学数学四年级下册乘法运算定律练习卷（带解析）1．下列等式中，运用了乘法分配律的是（）A. a×b×c=ac+bcB. (a+b)×c=a×(b×c)C. (a×b)×c=ac×bcD. (a+b)×c=ac+bc2．下面算式中运用了乘法结合律的有（）A.4×7×5×3=（4×5）×（7×3）B.52×27+52×13=52×（27+13）C.89×7=7×893．下面算式中运用了乘法分配律的是（）A.56×（88+12）=56×100B.13×2+13×8=13×（2+8）C.6×25×4=6×（25×4）4．36×17+17×64=（36+64）×17应用了（）A.加法结台律B.乘法结合律C.乘法分配律5．75×102=75×100+75×2是根据□计算的。
人教版数学 四年级下册 乘法运算律 课后练习题
一、选择题1. 4×8×125×25＝（4×25）×（8×125），该式运用了（）。
A．乘法交换律B．乘法结合律C．乘法交换律和结合律2. 计算720÷45时，正确的简便算法是（）。
A．720÷9×5 B．720÷5×9 C．720÷9÷53. 7.8×101=7.8×100+7.8×1运用的是乘法（）A．结合律B．分配律C．交换律D．结合率和交换律4. 在算101×99时，小明是这样算的：101×100－101×1＝…他运用了（）。
A．乘法交换律B．乘法结合律C．乘法分配律5. △×□×○＝△×（□×○）这个等式可以表示（）。
A．乘法交换律B．乘法结合律C．乘法分配律二、口算和估算6. 直接写出得数．25×16= 5×8+15×8= 480÷60= 12×3÷12×3=125×24= 55×2÷5= 565-118-82= 4×13×5=三、填空题7. 一把椅子34元，一张课桌166元，学校买了35套桌椅（每套包括一张课桌和一把椅子），一共花了( )元。
8. 25×19×4＝25×4×19运用了( )使计算简便。
9. 超市某天卖出12箱酸奶和18箱纯奶，每箱都是24盒。
两种奶共卖出多少盒？列式为( )，还可以列式为( )。
10. 在计算125×88时，聪聪是这样想的：125×88＝125×（80＋8）＝125×80＋125×8＝10000＋1000＝11000，这是运用了( )律。
四年级数学下册乘法运算定律专项练习题
四年级数学下册乘法运算定律专项练习题二、乘法交换律、乘法结合律1、乘法交换律：交换两个因数的位置，积不变。
用字母表示为：a ×b ＝b × a2 、多个数相乘，任意交换因数的位置，积不变。
如a × b × c ×d ＝b × d × a × c3 、乘法结合律：三个数相乘，先乘前两个数，或者先乘后两个数，积不变。
永宁字母表示为：（a × b ）× c ＝a ×（b × c ）4 、在乘法算式中，如果其中两个因数的积为整十、整百、整千数时，可以运用乘法交换律、乘法结合律来改变运算顺序，从而简化运算。
如：125 × 25 × 8 × 4＝125 × 8 × 25 × 4---------------------------- 乘法交换律＝（125 × 8 ）×（25 × 4 ） ----------------- 乘法结合律＝1000 × 100＝ 1000004 、乘法交换律、乘法结合律的结合运用8 ×（30 × 125 ） 5 ×（63 × 2 ）25 ×（26 × 4 ）（25 × 125 ）× 8 × 478 × 125 × 8 × 325 × 125 × 8 × 4125 × 19 × 8 × 3（125 × 12 ）× 8（25 × 3 ）× 412 × 125 × 5 × 85 、运用乘法交换律、乘法结合律简化运算的实质与算式特点实质：把其中相乘结果为整十、整百、整千的两个因数先相乘。
四年级下册小数乘法竖式练习题
四年级下册小数乘法竖式练习题精品文档四年级下册小数乘法竖式练习题6.5×8.4=56×1.3= .2×2.5= .6×1.08= 0.87×7= .5×16=12.5×42=1.8×23=0.37×0.4= 1.06×25= ×8.06= 0.6×0.39=3.5×3= 0.72×5= .05×4=12.4×7=2.3×12=6.7×0.3= .4×6.2= 0.56×0.04=6.7×0.3=0.56×0.04=.7×4.6= 0.29×0.07=27×0.43= 1.7×0.45=1.2×1.4= 0.37×8.4= 0.86×1.2=2.34×0.15= 1×2.84=.32×8=6.8×25= .58×3=×1.6=×2.4=2.56×3.7=1.56×0.08=1.03×5.3= 0.208×2.5=1.12×1.1=0.326×1.3=6.5×6.5= .3×2.6=0.98×5.5=.1×2.15=.2×2.9=0.48×8.1=6.4×0.063= 0.15×0.65=小学四年级下册数学小数乘法练习题一、直接写得数3.8×2=10×0.7= 13.9×0=08?100= .5×1=1.8×0.5=3.2×3=13.1×0.3= 0.08×1.25= .5×4= .5×8=0.5×0.2= 0.6×0.1=0.7×0.8=2.5×8×0=125×0.8= 二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6=0.38×600=7.05×2.4= 0.46×7.9=89.3×7.6=60.5×400=1 / 8精品文档三、混合运算12.5×8.2×0.23×1.4，0.23×8.60.125×0.4×0.16×2.55.6×101 .85×991.15×99，1.1516.2×101,16..5×7.8，5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
四年级下册小数点乘法口算题50题
四年级下册小数点乘法口算题50题一、题目1. 0.2×3 =2. 0.5×4 =3. 0.3×5 =4. 1.2×2 =5. 2.5×2 =6. 0.4×6 =7. 1.5×3 =8. 0.6×5 =9. 2.1×2 =10. 3.2×2 =11. 0.7×4 =12. 1.8×3 =13. 0.9×5 =14. 2.3×2 =15. 3.5×2 =16. 0.8×6 =17. 1.6×3 =19. 2.4×2 =20. 3.3×2 =21. 0.3×7 =22. 1.4×4 =23. 0.5×8 =24. 2.2×3 =25. 3.1×2 =26. 0.6×7 =27. 1.3×5 =28. 0.7×6 =29. 2.5×3 =30. 3.4×2 =31. 0.4×9 =32. 1.7×3 =33. 0.8×7 =34. 2.6×2 =35. 3.6×2 =36. 0.5×9 =37. 1.9×3 =39. 2.7×2 =40. 3.8×2 =41. 0.3×10 =42. 1.5×4 =43. 0.6×8 =44. 2.8×2 =45. 3.9×2 =46. 0.7×8 =47. 2.1×3 =48. 1.4×5 =49. 2.9×2 =50. 3.7×2 =二、题目解析1. 0.2×3- 解析：把0.2看作2个0.1，2个0.1乘以3就是6个0.1，也就是0.6。
小学四年级下册小数乘法练习题
小学四年级下册小数乘法练习题小学四年级下册小数乘法练习题练习题是以巩固学习效果为目的要求解答的问题；反复学习、实践，以求熟练为目的的问题，下面是店铺精心整理的小学四年级下册小数乘法练习题，欢迎大家借鉴与参考，希望对大家有所帮助。
一、填空题1、5个3.5连加写成乘法算式是( )。
2、37.8缩小到原来的后是( );( )扩大到原来的100倍后是9.9.3、15.32先缩小到原来的，小数点再向右移动三位，结果是( )。
4、3.7×0.44的积是( )位小数，0.37×43的积是( )位小数。
5、根据55×11=565，写出下面各个算式：5.5×1.1=( ) 0.55×0.11=( ) 0.550×110=( )6、按规律填数：A. 1.1 2.2 3.3 ( ) 5.5 ( ) 7.7 ( )B. 18.8 17.5 ( ) 14.9 ( ) ( )7、1.25×8.8=1.25×( )+1.25×( ),运用了( )律。
(4.6×0.25)×4=4.6×( × )，运用了( )律。
二、判断题1、一个不为零的数乘以一个小数一定小于原来这个小数。
( )2、去掉小数点后面的零，小数的大小不变。
( )3、整数的运算定律同样适合于小数的运算。
( )4、3.5×66，表示66个3.5相加。
( )5、100个0.55相加可以写成0.55×100. ( )三、计算1.直接写出得数0.5×0.2= 0.25×0.4= 1.25×8= 0×1000+3=0.12×40= 100×0.78= 12.78+0.22= 0.6+0+0.7=2.用竖式计算0.37×22 7.89×0.11 4.006×0.453.用递等式计算0.65×0.7+0.65×0.3 35.678+5.78+7.322 1.25×7.7×0.80.33×0.25×0.4 46.89-7.99-6.01 0.78×(78.44+7.77)四、解决问题1.李阿姨去人人乐超市，买水果。
小学四年级数学下册练习题乘法交换律和结合律(共400题)
月 日 姓名: 分 秒 班级:
58 25 4
19000 25 4
4800 25 4
2300 25 4
4600 25 4
1100 25 4
9000 8 125
700 25 4
25 79 4
4300 25 4
25 16 4
4100 25 4
25 33 4
11000 4 25
25 91 4
15000 8 125
4000 25 4
125 8 8
1700 25 4
39 25 4
700 25 4
25 19 4
900 25 4
10000 125 8
11000 125 8
93 25 4
25 53 4
4
小学四年级数学下册练习题 《乘法交换律和结合律》 题数：400题
25 76 4
2100 25 4
月 日 姓名: 分 秒 班级:
400 25 4
125 9 8
1400 25 4
2000 125 8
25 69 4
25 59 4
16000 25 4
125 19 8
73 25 4
25 2 4
25 17 4
25 96 4
24 25 4
45 25 4
25 6 4
4 125 8
68 25 4
25 78 4
8
小学四年级数学下册练习题 《乘法交换律和结合律》 题数：400题
84 25 4
125 14 8
月 日 姓名: 分 秒 班级:
25 55 4
10000 25 4
25 35 4
500 25 4
6000 25 4
四年级下册乘除法计算题
四年级下册乘除法计算题一、乘法计算题（10题）1. 25×16- 解析：可以将16拆分成4×4，然后利用乘法结合律进行计算。
- 计算过程：25×16 = 25×4×4=100×4 = 400。
2. 125×88- 解析：把88拆分成8×11，再根据乘法结合律计算。
- 计算过程：125×88 = 125×8×11 = 1000×11=11000。
3. 32×25- 解析：将32拆成8×4，然后用乘法结合律。
- 计算过程：32×25=8×4×25 = 8×(4×25)=8×100 = 800。
4. 15×102- 解析：把102拆成100 + 2，再利用乘法分配律计算。
- 计算过程：15×102=15×(100 + 2)=15×100+15×2 = 1500 + 30=1530。
5. 23×99- 解析：把99写成100 - 1，运用乘法分配律。
- 计算过程：23×99 = 23×(100 - 1)=23×100-23×1 = 2300-23 = 2277。
6. 45×18- 解析：把18拆成2×9，然后计算。
- 计算过程：45×18 = 45×2×9=90×9 = 810。
7. 56×125- 解析：把56拆成7×8，再根据乘法结合律。
- 计算过程：56×125 = 7×8×125=7×(8×125)=7×1000 = 7000。
8. 36×201- 解析：把201拆成200+1，利用乘法分配律。
小学四年级下册数学小数乘法练习
小学四年级下册数学小数乘法练习题一、直接写得数3.8×2= 10×0.7= 13.9×0= 508÷100= 5.5×1= 1.8×0.5= 3.2×3= 13.1×0.3= 0.08×1.25= 2.5×4= 2.5×8= 0.5×0.2=0.6×0.1= 0.7×0.8= 2.5×8×0= 125×0.8=二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6= 0.38×600=7.05×2.4= 0.46×7.9= 89.3×7.6= 60.5×400=三、混合运算12.5×8.2×8 0.23×1.4＋0.23×8.6 0.125×（80＋0.8）0.4×0.16×2.5 5.6×101 7.85×991.15×99＋1.15 16.2×101－16.2 4.5×7.8＋5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
强强的妈妈各买回5斤，需要准备多少钱？小学四年级下册数学小数乘法计算练习一、直接写得数3.8×2= 10×0.7= 13.9×0= 508÷100=5.5×1= 1.8×0.5= 3.2×3= 13.1×0.3=0.08×1.25= 2.5×4= 2.5×8= 0.5×0.2=0.6×0.1= 0.7×0.8= 2.5×8×0= 125×0.8=二、填空1、8个0.8是( )，30个0.25的和是( )。
小学四年级数学下册乘法结合律和分组律练习题
小学四年级数学下册乘法结合律和分组律练习题乘法结合律练题1. 小明有3个苹果，每个苹果有4个切片。
请问，总共有几个切片？- 解答：3个苹果，每个苹果有4个切片，那么总共有 3 * 4 = 12 个切片。
2. 小华每天要喂养5个鱼缸里的鱼，每个鱼缸里有6条鱼。
请问，小华一共要喂几条鱼？- 解答：一共有5个鱼缸，每个鱼缸里有6条鱼，那么小华一共要喂 5* 6 = 30 条鱼。
3. 妈妈请小明去买水果，小明买了2斤苹果，每斤苹果5元。
请问，小明一共花了多少钱？- 解答：小明买了2斤苹果，每斤5元，那么小明一共花了 2 * 5 = 10 元。
4. 一本书有3个章节，每个章节有4个小节。
请问，一本书一共有多少个小节？- 解答：一本书有3个章节，每个章节有4个小节，那么一本书一共有3 * 4 = 12 个小节。
分组律练题1. 请你用分组律计算：(3 + 4) + 5 = ?- 解答：先计算括号中的加法：3 + 4 = 7，然后将结果与5相加，即 7 + 5 = 12。
2. 请你用分组律计算：(5 - 2) + 6 = ?- 解答：先计算括号中的减法：5 - 2 = 3，然后将结果与6相加，即 3 + 6 = 9。
3. 请你用分组律计算：(8 ÷ 2) + 4 = ?- 解答：先计算括号中的除法：8 ÷ 2 = 4，然后将结果与4相加，即 4 + 4 = 8。
4. 请你用分组律计算：(10 × 2) + 3 = ?- 解答：先计算括号中的乘法：10 × 2 = 20，然后将结果与3相加，即20 + 3 = 23。
以上是小学四年级数学下册乘法结合律和分组律的练习题。
请认真完成每一道题目，并核对答案。
希望你能在练习中掌握好乘法结合律和分组律的运用！。
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小学四年级数学下册乘法练习题（1）
姓名：学号：
345×12= 403×35= 276×46= 325×26= 237×83= 302×52= 54×745= 36×254= 83×217= 43×709= 32×164= 45×308= 18×432= 85×215= 23×506= 567×34= 46×134= 34×246= 225×48= 25×418=
三、网络部分
一、单选题
1、要打开IE窗口，可以双击桌面上的哪个图标？
A：Internet Explorer
B：网上邻居
C：Outlook Express
D：我的电脑
答案：A 2、如果无法显示当前网页，可以尝试______。
A：点击"后退"按钮
B：点击"停止"按钮
C：点击"刷新"按钮
D：点击"搜索"按钮
答案：C 3、要想查看近期访问的站点，应该点击______按钮。
A：主页
B：搜索
C：收藏
D：历史
答案：D 4、与普通邮件相比，电子邮件的特点是______。
A：电子邮件发送速度慢、费用高
B：电子邮件发送速度慢、费用低
C：电子邮件发送速度快、费用高
D：电子邮件发送速度快、费用低
答案：D 5、一个教室内计算机联成的网络属于______。
A：因特网
B：广域网
C：局域网
D：城域网
答案：C 6、使用Internet Explorer浏览网页时，如果想要回到默认的一进入Internert Explorer 就开始的网页，可以使用______按钮。
A：主页
B：停止
C：刷新
D：后退
答案：A 7、启动浏览器后自动打开的网页就是______。
A：网址
B：网站
C：网页名。