小数加减乘除法简便运算练习题.docx
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小数加减乘除法简便运算练习题.docx
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小数加减乘除法简便运算练习题
小数简便运算练习
(一)
班级姓名得分
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
-7.2
0.32×403
3.2+0.36+4.8+1.64
1.23
+3.4-
0.23+6.6
0.25×36
12.7-(3.7+0.84)
36.54
-1.76
-4.54
0.25
×0.73×4
7.6×0.8+0.2×7.6
0.85
×199
0.25
×8.5×4
1.28×8.6+0.72×8.6
12.5
×0.96×0.8
10.4
-9.6×0.35
0.8×(4.3×1.25)
3.12
+3.12×99
28.6
×101-28.6
14-7.32-2.682.64
+8.67+7.36+11.332.31×1.2×0.5
2.5-0.25)×0.49.16×1.5-0.5×9.163.6-3.6×0.5
4.5÷1.84.2÷3.5930÷0.6÷5
63.4÷2.5÷0.44.9÷1.43.9÷(1.3×5)
7.7+1.54)÷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)
班级姓名得分
3.68+7.56-2.68
7.85+2.34-0.85+4.66
35.6-1.8-15.6-7.2
3.82+2.9+0.18+9.19.6+4.8-3.6
7.14-0.53-2.47
5.27+2.86-0.66+1.6313.35-4.68+2.65
47.8-7.45+8.8
0.398+0.36+3.6415.75+3.59-0.59+14.25
42.5-(6.07+1.13)
73.8-1.64-13.8-5.36
66.86-8.66-1.34
0.25×16.2×4
3.72×3.5+6.28×3.5
36.8-3.9-6.12
5.48-(9.4-0.52)
4.8×7.8+78×0.523.6×102
6.4×0.25+3.6÷4
32+4.9-0.9
4.8-4.8×0.5
(1.25-0.125)×8
4.8×100.1
56.5×9.9+56.5
7.09×10.8-0.8×7.09
4.2÷3.5320÷1.25÷8
18.76×9.9+18.76
3.65×10.1
3.6-3.6×0.8
15.2÷0.25÷4
5.6÷3.59.6÷0.8÷0.4
4.2×99+4.2
0.89×100.1
146.5-(23+46.5)
17.8÷(1.78×4)
5.83×2+4.27
(45.9-32.7)÷8÷0.125
9.7×99+9.7
4.36×12.5×8
15.6×13.1-15.6-15.6×2.10.65×101
27.5×3.7-7.5×3.7
8.54÷2.5÷0.4
3.83×4.56+3.83×5.44
小数乘法简便计算练习题
姓名
班级
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
0.25×16.2×4
1.25×2.5×32
3.2×0.25×12.5
0.25×36
(1.25-0.125)×8
4.8×10.1
3.6×102
0.39×199
0.32×403
3.65×10.10.85×9.9
3.72×3.5+6.28×3.5
15.6×2.1-15.6×1.1
4.8×7.8+78×0.52
56.5×99+56.5
7.09×10.8-0.8×7.09
1.87×9.9+0.187
4.2×99+4.2
3.8×4.56+3.83×5.44
9.7×99+9.7
27.5×3.7-7.5×3.7
3.14×0.68+31.4×0.032
7.2×0.2+2.4×1.4
5.4×11-5.4
7.74×(2.8-1.3)+1.5×2.263.9×2.7+3.9×7.3
12.7×9.9+1.27
2.3×16+2.3×23+2.3
3.65×4.7-36.5×0.37
101×0.87-0.91×87
46×57+23×86
10.7×16.1-15.1×10.77.6×0.8+0.2×7.6
1.28×8.6+0.72×8.6
10.6×0.35-9.6×0.358.9×1.01
0.65×101
48×0.56+44×0.48
0.279×343+0.657×2790.264
×519+264×0.481
45×21-50×2.1
45×1.58+5.5×15.8
25
×7.3×0.4
小数乘法的简便运算
2.5×3212.5
×56
25
×0.36
、乘法分配律的运用。
0.25×10.412.5
×8.8
99
×0.35
×0.28+6.3×0.28-0.28×21.08×9+
3.7×1.8-2.7×1.895.7
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)
12.5×8812.5×880.25×480.25×48
12.6
3.34
1.5×102
1.25
×0.7×0.8
2.7
×3.7+0.37×73
8.7×99
2.5
0.8
×(12.5–1.25)
1.25
×0.4×80×
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
66.86-8.66-1.34
(1.25-0.125)×8
13.35-4.68+2.65
7.14-0.53-2.47
3.72×3.5+6.28×3.5
+56.5
15.6×13.1-15.6-15.6×2.1
4.8×100.1
7.09×10.8-0.8×7.09
32
+
4.9-0.9
25.48-(9.4-0.52)
4.2÷3.5
320÷1.25÷8
18.76×9.9
+18.76
3.83×4.56+3.83×5.44
8.9
×1.01
27.5×3.7-7.5×3.7
3.2×0.25×12.5
(45.9-32.7)÷8÷0.125
3.14×0.68+
31.4×0.032
5.6
÷1.25÷0.8÷2.5÷0.4
7.2×0.2+2.4×1.4
3.9×7.3
18-1.8÷0.125÷0.812.7
×9.9+1.27
21×(9.3-3.7)-5.615.02-6.8-1.02
5.4
×11-5.4
2.3×16+2.3×23+2.3
9.43
6.28-1.57)
3.65×4.7-36.5×0.37
101×0.87-0.91×8710.7×16.1-15.1×10.70.79×199
4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.24
6.02+3.6+1.98
2.35+1.713+0.287+7.651.57+0.245+7.43
3.25+1.79-0.59+1.7523.4-0.8-13.4-7.20.32×403
12.7-(3.7+0.84)
36.54-1.76-4.540.25
×0.73×4
7.6×0.8+0.2×7.60.85
×1990.25
×8.5×4
1.28×8.6+0.72×8.612.5
×0.96×0.810.4
-9.6×0.35
0.8×(4.3×1.25)
3.12+3.12×9928.6
×101-28.6
0.86×15.7-0.86×14.72.4×102
2.31
×1.2×0.5
14-7.32-2.682.64
+8.67+7.36+11.337
0÷28
2.5-0.25)×0.49.16×1.5-0.5×9.163.6-3.6×0.5
7.7+1.54)÷0.72.5
×2.4
2.7
÷4515
÷(0.15×0.4)
0.35×1.25×2×0.832.4
×0.9+0.1×32.415÷0
.25
4.5÷1.84.2
÷3.5
930
÷0.6÷5
小数乘除法简便计算专项练习
班级:
姓名:
一、计算
1.25×3.2×0.25
4.7
×1.25×1.6
1.25×88
1.25×6.4×0.25
4.6
×0.35+4.6×0.65
2.95×101-2.95
2.55×1.5+1.5+6.45×1.5
12.5×5×0.16
3.2×10.1
59÷0.25
0.52
×10510.01×4.5
1.8×0.9+0.18
5.4×0.68+3.4×2×0.468.9
×9.9+11×0.99
9.9+0.187
12.7×9.9+
98+8.4
7.74×(2.8-1.3)+1.5×2.26
1.27
2.3×16+2.3×23+2.3
3.65×4.7-36.5×0.37
4.6×57+2.3×86
2.22×9.9+6.66×6.7
101×0.87-0.91×
、填空
1、已知25.16÷0.37=6,8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
4、7.07÷0.3商是23.5,余数是()
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
面各题怎样算简便就怎样算。
1)小数加减法计算
6.9+4.8+3.1
0.456
+6.22+3.78
15.89
+(6.75-5.89)
4.02+5.4+0.98
5.17
-1.8-3.2
13.75
-(3.75+6.48)
3.68+7.56-2.68
7.85
+2.34-0.85+4.6635.6
-1.8-15.6-7.2
3.82+2.9+0.18+9.19.6
+4.8-3.6
7.14
-0.53-2.47
5.27+2.86-0.66
+1.6313.35
-4.68+2.65
73.8
-1.64-13.8-5.36
47.8-7.45+8.8
0.398+0.36+3.64
15.75+3.59
-0.59+14.25
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+0.866
1.27+3.9+0.73+16.1
7.5
+4.9-6.5
3.07-0.38-1.62
1.29
+3.7+2.71
+6.38
-2.45-1.55
3.25+1.79-0.59+1.7523.4-0.8-13.4-7.23.2+0.36+4.8+1.64
14-7.32-2.682.64+8.67+7.36+11.33
2)小数乘法计算
0.25×16.2×4
(1.25
-0.125)
×8
3.6
×102
320÷1.25÷8
3.72×3.5+6.28
×3.5
14.8
×
7.8+78×0.52
0.8
×100.1
5.6×13.1-15.6
-15.6
×2.14.2
÷
3.5
7.09
×10.8
-0.8×7.09
18.76×9.9+18.763.52÷2.5÷0.456.5×9.9+56.5
515.6×13.1-15.6-15.6×2.14.8×7.8+78×0.524.2÷3.5
4.8×100.1
56.5
×9.9+56.5
7.09
10.8-0.8×7.09
18.76×9.9+18.76
3.52
÷2.5÷0.4
320
÷1.25÷8
9.6÷0.8÷0.4
4.2
×99+4.2
15.2
÷0.25
÷4
0.89
100.1
17.8÷(1.78×4)
0.49
÷1.4
1.25
×2.5
×32
3.65
×10.1
3.83×4.56+3.83×5.44
9.7
×99+9.7
3.14
×0.68+31.4×0.032
27.5×3.7-7.5×3.7
8.54
÷2.5÷0.4
0.65
1013.2
×0.25×12.5
(45.9-32.7)÷8÷0.125
5.6
÷1.25÷0.8÷2.5
÷0.4
4.36
×12.5×8
7.2×0.2+2.4×1.4
8.9
×1.01
7.74
×(2.8-1.3)+
1.5×2.26
3.9×2.7+3.9×7.318
-1.8÷0.125
÷0.8
12.7
×9.9
+1.27
63.4÷2.5÷0.44.9
÷1.43.9
÷(1.3×5)
930
÷0.6÷5
7.7+1.54)÷0.7
2.5
×2.4
2.7
÷4515÷(0.15×0.4)
2.5-0.25)×0.49.16
×1.5-0.5×9.163.6
-3.6×0.570÷28
0.8×(4.3×1.25)
3.12+3.12×9928.6
×101-28.6
0.86×15.7-0.86×14.72.4×102
2.31
×1.2×0.5
7.6×0.8+0.2×7.60.85
×1990.25
×8.5×44.6÷3.5
1.28×8.6+0.72×8.612.5
×0.96×0.810.4
-9.6×0.350.25
×36
0.25×0.73×40.32
×40346×57+23×860.79
×199
13.7×0.25-3.7÷42.22
×9.9+6.66×6.72.3
×16+2.3×23+2.3
101×0.87-0.91×8710.7
×16.1-15.1×10.73.65×4.7-36.5×0.37
4.8+8.63+5.2+0.37
5.93+0.19+2.81
1.76+0.195+3.24
3.07-0.38-1.62
1.29+3.7+2.71+6.3
8-2.45-1.55
3.25+1.79-0.59+1.75
4)
3.2+0.36+4.8+1.64
1.23+3.4-0.23+6.6
36.54-1.76-4.54
0.25×0.73×4
0.25×36
0.32×403
0.8×(4.3×1.25)
3.12+3.12×99
28.6×101-28.6
4.23+6.17)×0.8
0.86×15.7-0.86×14.7
2.4×102
14-7.32-2.68
2.64+8.67+7.36+11.33
2.31×1.2×0.5
2.5-0.25)×0.4
9.16×1.5-0.5×9.16
3.6-3.6×0.5
63.4÷2.5÷0.4
4.9÷1.4
3.9÷(1.3×5)
(7.7+1.54)÷0.7
2.5×2.4
2.7÷45
0.35×1.25×2×0.8
32.4×0.9+0.1×32.4
15÷0.25
70÷28
15÷(0.15×0.4)
4.25÷2.5×9.9+0.17
7.6×27+7.6×174-7.6
72÷1.25÷8
270÷4.5
7.7+15.4)÷7
9.9×341.5×1.2+8.8×1.5
4.7×8.3+5.2×8.3+0.83
7.12×4-1.12×4
450÷2.5÷2
42÷3.5
26.7-0.5×5-7.5
48.4+2.78+51.6-0.48
7.3+2.7-7.3+2.7
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