问题描述: 17×0.25+1/4+2×25% 怎么简便计算? 1个回答 分类:数学 2014-11-04 问题解答: 我来补答 17×0.25+1/4+2×25%=17×0.25+0.25+2×0.25=0.25×(17+1+2)=0.25×20=5 展开全文阅读