问题描述: (-370)X(-1/4)+0.25X24.5+(-5 1/2)X(-25%) 简便计算 1个回答 分类:数学 2014-10-16 问题解答: 我来补答 (-370)X(-1/4)+0.25X24.5+(-5 1/2)X(-25%)=(370)×(1/4)+24.5×(1/4)+(5 1/2)×(1/4)=(370+24.5+5.5)×(1/4)=(370+(24.5+5.5))×(1/4)=(370+30)×(1/4)=400×(1/4)=100 展开全文阅读