问题描述： 2.7*1.3=()*0.13=0.27*()=0.027*()=()*0.013 1个回答 分类：数学 2014-12-16 问题解答： 我来补答 2.7*1.3=(27)*0.13=0.27*(13)=0.027*(130)=(270)*0.013希望对您有所帮助 再问： 简便 2.5*32*0.125 = = 0.35*102 4.4*0.25 再答： 2.5*32*0.125 =2.5*4*8*0.125 =10*1 =10 0.35*102 =0.35*(100+2) =0.35*100+0.35*2 =35+0.7 =35.7 4.4*0.25 =(4+0.4)*0.25 =4*0.25+0.4*0.25 =1+0.1 =1.1 展开全文阅读
