问题描述： 2.5+2.5×1.65 38.4-38.4×0.6= = = == = 1个回答 分类：数学 2014-09-28 问题解答： 我来补答 2.5+2.5×1.65 38.4-38.4×0.6=2.5X(1+1.65) = 38.4X(1-0.6) =2.5X2.65 =38.4X 0.4=6.625 =15.36 展开全文阅读
