简便计算 1.25×0.25×0.05×64

问题描述:

简便计算 1.25×0.25×0.05×64
1个回答 分类:数学 2014-09-26

问题解答:

我来补答
1.25×0.25×0.05×64
=1.25×0.25×0.05×8×4×2
=(1.25×8)×(0.25×4)×(0.05×)
=10×1×0.1
=1
 
 
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