新人教版五年级上册小数简便计算练习题六套题Word文档格式.docx
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2.4
3.2×
12.515÷
(0.15×
0.4)2.7÷
45
8.54÷
0.40.25×
0.73×
44.6÷
3.5
3.82+2.9+0.18+9.11.27+3.9+0.73+16.11.57+0.245+7.43
2.64+8.67+7.36+11.330.134+2.66+0.8661.76+0.195+3.24
23.4-0.8-13.4-7.215.02-6.8-1.028-2.45-1.55
3.25+1.79-0.59+1.751.23+3.4-0.23+6.67.5+4.9-6.5
13.75-(3.75+6.48)15.89+(6.75-5.89)12.7-(3.7+0.84)
0.8×
(4.3×
1.25)4.36×
12.5×
80.25×
4
320÷
817.8÷
(1.78×
4)4.5÷
1.8
0.96×
0.81.25×
2.5×
324.9÷
1.4
0.35×
(1.25×
2)×
0.863.4÷
0.40.25×
36
2.35+1.713+0.287+7.654.8+8.63+5.2+0.375.93+0.19+2.81
67.34+21.56+2.66+8.440.74+19.16+9.26+0.826.02+3.6+1.98
15.75+3.59-0.59+14.253.9-4.1+6.1-5.914-7.32-2.68
25.48-(9.4-0.52)9.43-(6.28-1.57)146.5-(23+46.5)
36.54-1.76-4.543.07-0.38-1.6232+4.9-0.9
12.512.5×
0.84.2÷
15.2÷
0.25÷
41.25×
320.49÷
18-1.8÷
0.125÷
0.8930÷
0.6÷
570÷
28
2.31×
1.6×
0.5×
1.250.25×
8.5×
415÷
0.25
5.6÷
0.40.125×
16
7.09×
10.8-0.8×
7.093.72×
3.5+6.28×
3.527.5×
3.7-7.5×
3.7
3.83×
4.56+3.83×
5.443.9×
2.7+3.9×
7.37.6×
0.8+0.2×
7.6
乘法分配律的运用二
3.14×
0.68+31.4×
0.03232.4×
0.09+0.1×
3.241.28×
8.6+7.2×
86
2.3×
16+2.3×
22+23×
0.29.16×
15-0.5×
91.6101×
0.87-0.91×
87
乘法分配律的运用三
28.6×
101-28.61.87×
9.9+0.18758.5×
81-8.5
(45.9-32.7)÷
8÷
0.125(1.25-0.125)×
8(2.5-0.25)×
0.4
乘法分配律的运用四
100.10.79×
1990.85×
199
3.65×
10.14.6×
1020.65×
101
7.74×
(2.8-1.3)+1.5×
2.2646×
57+23×
86
9.16×
2.53-0.053×
91.6-9.16
小数简便计算练习五
小数简便计算的方法:
(整数的运算定律在小数中同样适用)
乘法交换律与结合律、分配律的运用。
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。
下面各题怎样算简便就怎样算。
乘法分配律的运用一
0.86×
15.7-0.86×
14.75.8×
4.8+4.8×
4.26.12×
1.25-2.12×
1.25
7.097.24×
5.2+2.76×
5.236.7×
3.7-3.7×
6.7
4.7-36.5×
0.378.8×
0.25-0.48×
2.548×
0.56+44×
0.48
10.7×
16.1-151×
1.073.4×
10.9+34-0.34×
1912.7×
9.9+1.27
18.76×
9.9+18.7656.5×
9.9+56.55.4×
11-5.4
21×
(9.3-3.7)-5.6(7.7+1.54)÷
0.710.4-9.6×
0.35
0.89×
100.10.85×
9.90.32×
403
4.8×
10.14.96×
258.9×
1.01
0.279×
343+6.07×
27.9+5×
2.797.2×
0.2+2.4×
1.4
14.23×
12.3-1.423×
22-1423
小数简便计算练习六
16.8-12.8×
12.515.6×
2.1-15.6×
1.110.7×
16.1-15.1×
10.7
10.6×
0.35-9.6×
0.3527.6×
8.3-7.6×
8.31.28×
8.6+0.72×
8.6
7.8+78×
0.527.2×
1.44.8×
0.52
0.264×
519+264×
0.4812.22×
9.9+6.66×
6.745×
21-50×
2.1
23+2.33.12+3.12×
993.6-3.6×
0.5
9.7×
98-9.7+9.7×
312.7×
9.9+1.2746.2×
99+46.2
9.3×
100.10.125×
963.4×
102
10.80.39×
1992.4×
2.26158+45×
1.58-5.5×
15.8
15.6×
13.1-15.6-15.6×
2.1