(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34)

问题描述:

(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34) 简便算法
1个回答 分类:数学 2014-10-01

问题解答:

我来补答
(1+0.23+0.34)*(0.23+034+0.56)-(1+0.23+0.34+0.56)*(0.23+0.34)
=(0.23+0.34+0.56)+(0.23+0.34)*(0.23+0.34+0.56)-(0.23+0.34)-(0.23+0.34+0.56)*(0.23+0.34)
=(0.23+0.34+0.56)-(0.23+0.34)
=0.56
 
 
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