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 展开全文阅读