五年级上册小数乘法简便运算.docx
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五年级上册小数乘法简便运算
最新五年级上册小数乘法简便运算
一、简便运算。
34.52-17.87-12.23(8×5.27) ×1.25
3.6×2.5+7.5×3.6
19.2 ×0.54+19.2 ×0.46
1
0.25×185×400.25×185×40
0.25×185×4056.5×99+ 56.5
2
0.25×1.85×402.5×1.25×0.32
4.3×0.94.57+3.17+3.43+5.83
3
2.5×1.38×1.49.5×99
6.81+6.81×990.25×185×40
4
26×15.7+15.7×249.5×101
0.25×39+0.2513.5×0.98
5
(12.25+0.85-6.7)÷84.8×39+61×4 .8
2.37×6.3+2.37×3.72.5×(3.8×0.04)
6
4.04×250.125×3.2×2.5
2.5×65+45×2.56.5×102
7
3.25×99+3.250.125×32
5.2×0.9+ 0.9(1.25 -0.125)×8
8
0.25×1.87×4012.5×0.4×2.5×8
7.09×10.8-0.8×7.09
0.125×72
9
2.65×1.7+1.35×1.745.55-(6.82+15.55)
6.85+6.85 ×99
46×0.33+54×0.33
10
4.3×50×0.24.8×100.1
2.5×1.25×0.327.05×23.7+7.05×76.3
11
[12.81-(1.5+7.81)] ×1.89.45 ×101-9.45
4.6×56+48×4 .6-4.6×42.5×7.1×4
12
8.7×17.4 - 8.7×7.48×25×1.25×16
13