精华版小数加减乘除法简便运算练习题Word文件下载.docx
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精华版小数加减乘除法简便运算练习题Word文件下载.docx
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0.72.5×
2.42.7÷
45
0.35×
1.25×
2×
0.832.4×
0.9+0.1×
32.415÷
0.25
70÷
2815÷
(0.15×
0.4)4.25÷
2.5×
9.9+0.17
小数简便运算练习
(二)
4.02+5.4+0.985.17-1.8-3.213.75-(3.75+6.48)
3.68+7.56-2.687.85+2.34-0.85+4.6635.6-1.8-15.6-7.2
3.82+2.9+0.18+9.19.6+4.8-3.67.14-0.53-2.47
5.27+2.86-0.66+1.6313.35-4.68+2.6547.8-7.45+8.8
0.398+0.36+3.64
15.75+3.59-0.59+14.2542.5-(6.07+1.13)
73.8-1.64-13.8-5.3666.86-8.66-1.340.25×
16.2×
3.72×
3.5+6.28×
3.536.8-3.9-6.125.48-(9.4-0.52)
4.8×
7.8+78×
0.523.6×
1026.4×
0.25+3.6÷
32+4.9-0.94.8-4.8×
0.5(1.25-0.125)×
8
100.156.5×
9.9+56.57.09×
10.8-0.8×
7.09
4.2÷
3.5320÷
1.25÷
818.76×
9.9+18.76
3.52÷
0.44.78÷
0.2+3.443.9-4.1+6.1-5.9
0.49÷
1.41.25×
323.6-0.6×
2
3.65×
10.13.6-3.6×
0.815.2÷
0.25÷
5.6÷
3.59.6÷
0.8÷
0.44.2×
99+4.2
0.89×
100.1146.5-(23+46.5)17.8÷
(1.78×
4)
5.83×
2+4.27(45.9-32.7)÷
8÷
0.1259.7×
99+9.7
4.36×
12.5×
815.6×
13.1-15.6-15.6×
2.10.65×
101
27.5×
3.7-7.5×
3.78.54÷
0.43.83×
4.56+3.83×
5.44
小数乘法简便计算练习题
班级姓名
小数乘法的简便计算的方法:
1、乘法交换律与结合律、分配率的运用。
(整数的运算定律在小数中同样适用)
2、表面上看来,左右两边没有相同的因数,不能使用乘法分配律。
我们可以通过变一变,分一分的方法找出相同因数再运用乘法分配律进行计算
0.25×
412.5×
0.80.25×
44.36×
8
41.25×
323.2×
12.50.25×
(1.25-0.125)×
84.8×
10.13.6×
1020.39×
199
0.32×
4033.65×
10.10.85×
9.93.72×
3.5
15.6×
2.1-15.6×
1.14.8×
0.5256.5×
99+56.5
7.09×
7.091.87×
9.9+0.1874.2×
99+4.2
3.8×
5.449.7×
99+9.727.5×
3.7
3.14×
0.68+31.4×
0.0327.2×
0.2+2.4×
1.45.4×
11-5.4
7.74×
(2.8-1.3)+1.5×
2.263.9×
2.7+3.9×
7.312.7×
9.9+1.27
2.3×
16+2.3×
23+2.33.65×
4.7-36.5×
0.37101×
0.87-0.91×
87
46×
57+23×
8610.7×
16.1-15.1×
10.77.6×
7.6
8.610.6×
0.35-9.6×
0.358.9×
1.010.65×
101
48×
0.56+44×
0.480.279×
343+0.657×
2790.264×
519+264×
0.481
9.16×
1.53-0.053×
91.60.125×
9612.5×
10.8(20-4)×
0.25
45×
21-50×
2.145×
1.58+5.5×
15.825×
7.3×
0.4
小数乘法的简便运算
姓名学号成绩
一、乘法交换律与结合律的运用。
4.56×
0.4×
2.512.5×
2.7×
0.812.5×
32×
2.5×
3212.5×
5625×
0.36
二、乘法分配律的运用。
0.25×
10.412.5×
8.899×
3.7×
1.8-2.7×
1.895.7×
0.28+6.3×
0.28-0.28×
21.08×
9+1.08
三、比较乘法结合律与分配律在简便运算时的区别(下面各题用不同的方法简算)。
8812.5×
880.25×
480.25×
48
四、变一变,能简算。
2790.264×
9.16×
91.6314×
0.043+3.14×
7.2-31.4×
0.15
五、用自己喜欢的方法做一做。
53×
10.14.2×
6.51+3.49×
4.225×
0.125×
15.89.99×
2.22+3.33×
3.34
1.4×
0.0572×
0.81+10.41.4×
25+3.45
1.5×
1021.25×
0.7×
0.82.7×
3.7+0.37×
73
8.7×
990.8×
(12.5–1.25)1.25×
80×
2.5
5×
1.03×
0.232×
1.250.45×
99
1甲有存款4000元,乙有存款2400元,乙从存款中取出一些后,甲的存款正好是乙现在的5倍。
乙取出多少元钱?
②有一堆煤,如果用甲种车一次运完,需要36辆;
如果用乙种车一次运完,需要45辆。
已知甲种车比乙种车每辆多运1.5吨。
问这批煤共有多少吨?
小数乘法简便计算
6.9+4.8+3.1
47.8-7.45+8.8
0.398+0.36+3.64
9.6+4.8-3.6
5.17-1.8-3.2
4.02+5.4+0.98
3.68+7.56-2.68
5.27+2.86-0.66+1.63
73.8-1.64-13.8-5.36
15.75+3.59-0.59+14.25
7.85+2.34-0.85+4.66
35.6-1.8-15.6-7.2
3.82+2.9+0.18+9.1
0.456+6.22+3.7815.89+(6.75-5.89)13.75-(3.75+6.48)3.6×
66.86-8.66-1.34
13.35-4.68+2.65
7.14-0.53-2.47
3.536.8-3.9-6.14.8×
9.9+56.5
2.14.8×
100.17.09×
7.0932+4.9-0.9
25.48-(9.4-0.52)4.2÷
3.5320÷
818.76×
0.43.9-4.1+6.1-5.95.6÷
4.2×
99+4.217.8÷
4)0.49÷
32
10.115.2÷
40.89×
100.1146.5-(23+46.5)
3.83×
5.444.36×
89.7×
99+9.78.9×
1.01
0.40.65×
1013.2×
12.5
(45.9-32.7)÷
0.1253.14×
0.0325.6÷
7.2×
1.47.74×
7.3
18-1.8÷
0.125÷
0.812.7×
21×
(9.3-3.7)-5.615.02-6.8-1.025.4×
11-5.4
2.3×
23+2.39.43-(6.28-1.57)3.65×
4.7-36.5×
0.37
8613.7×
0.25-3.7÷
42.22×
9.9+6.66×
6.7
101×
8710.7×
10.70.79×
0.86×
1022.31×
14-7.32-2.682.64+8.67+7.36+11.3370÷
28
4515÷
0.4)
5
小数乘除法简便计算专项练习
班级:
姓名:
一、计算
3.2×
0.25
4.7×
1.6
1.25×
88
6.4×
0.254.6×
0.35+4.6×
0.65
2.55×
1.5+1.5+6.45×
1.5
2.95×
101-2.95
12.5×
0.16
10.1
0.52×
10510.01×
4.5
59÷
1.8×
0.9+0.18
5.4×
0.68+3.4×
0.468.9×
9.9+11×
0.99
(1.25+0.25)×
16
23.9-0.6×
0.6-0.643.7×
0.44×
2.5
9.73÷
12.5÷
0.8
7.8×
4.86÷
3.91.9×
8.8+0.88
28.9×
4÷
2890.7777×
0.7+0.1111×
2.1
888×
1.6+222×
3.6
92×
0.9+7.24.8×
0.521.87×
9.9+0.187
1.44.2×
98+8.4
2.2612.7×
23+2.33.65×
0.37
4.6×
57+2.3×
862.22×
6.7101×
87
二、填空
1、已知25.16÷
0.37=68,直接写出下列各式的得数。
251.6÷
3.7=0.2515÷
0.37=2.516÷
37=
25.16÷
0.037=2.516÷
0.037=25.16÷
()=6.8
2、1吨36千克=()吨84分=()小时
15千克15克=()千克36小时=()天
3、将3.18÷
1.8、3.18÷
0.8、3.18÷
1.2、3.18÷
1、3.18÷
0.99从小到大的顺序排列
()
4、7.07÷
0.3商是23.5,余数是()
5、根据212×
34=7208,在()里填上合适的数。
2.12×
34=()()×
34=0.7208
()=7.20821.2×
0.34=()
0.0212×
340=()0.212×
()=72.08
6、两个数相乘,小马虎把第一因数30.95中的9写成了6,结果积比正确答案少0.81,那么另一个因数是多少?
五年级数学简便计算练习卷
下面各题怎样算简便就怎样算。
(1)小数加减法计算
6.9+4.8+3.10.456+6.22+3.7815.89+(6.75-5.89)
4.02+5.4+0.985.17-1.8-3.213.75-(3.75+6.48)
3.68+7.56-2.687.85+2.34-0.85+4.6635.6-1.8-15.6-7.2
3.82+2.9+0.18+9.19.6+4.8-3.67.14-0.53-2.47
5.27+2.86-0.66+1.6313.35-4.68+2.6573.8-1.64-13.8-5.36
47.8-7.45+8.8
0.398+0.36+3.64
66.86-8.66-1.3436.8-3.9-6.132+4.9-0.9
25.48-(9.4-0.52)3.9-4.1+6.1-5.915.02-6.8-1.02
32+4.9-0.9146.5-(23+46.5)9.43-(6.28-1.57)
3.25+1.79-0.59+1.7523.4-0.8-13.4-7.23.2+0.36+4.8+1.64
1.23+3.4-0.23+6.612.7-(3.7+0.84)36.54-1.76-4.54
14-7.32-2.682.64+8.67+7.36+11.33
(2)小数乘法计算
4(1.25-0.125)×
83.6×
102320÷
3.514.8×
0.520.8×
100.1
5.6×
2.14.2÷
3.57.09×
18.76×
9.9+18.763.52÷
0.456.5×
9.9+56.5
515.6×
0.524.2÷
0.4320÷
9.6÷
99+4.215.2÷
40.89×
17.8÷
4)0.49÷
323.65×
10.1
99+9.73.14×
0.032
0.40.65×
1013.2×
12.5
0.1255.6÷
0.44.36×
1.48.9×
1.017.74×
2.26
3.9×
7.318-1.8÷
(9.3-3.7)-5.65.4×
11-5.44.5÷
5)930÷
7.7+1.54)÷
0.570÷
28
44.6÷
0.350.25×
40.32×
40346×
860.79×
13.7×
6.72.3×
23+2.3
10.73.65×
4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.24
2.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.98
0.134+2.66+0.8661.27+3.9+0.73+16.17.5+4.9-6.5
3.07-0.38-1.621.29+3.7+2.71+6.38-2.45-1.55
3.25+1.79-0.59+1.7523.4-0.8-13.4-7.212.7-(3.7+0.84)
3.2+0.36+4.8+1.641.23+3.4-0.23+6.636.54-1.76-4.54
40.25×
360.32×
7.60.85×
1990.25×
8.612.5×
0.810.4-9.6×
0.35
1.25)3.12+3.12×
9928.6×
101-28.6
0.80.86×
14.72.4×
102
14-7.32-2.682.64+8.67+7.36+11.332.31×
0.5
0.49.16×
9.163.6-3.6×
(8+0.8)×
1.250.25×
4.4-0.25×
0.42.36×
1.84.2÷
3.5930÷
0.44.9÷
1.43.9÷
0.72.5×
2.42.7÷
0.832.4×
0.9+0.
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