问题描述: 14.28-(10-2.72)的简便计算方法急 1个回答 分类:数学 2014-11-28 问题解答: 我来补答 14.28-(10-2.72)=14.28-10+2.72=14.28+2.72-10=17-10=7 再问: 1.12/3.5/0.02的简便方法 再答: 1.12/3.5/0.02 =1.12/(3.5*0.02) =(1.12*100)/(3.5*0.02*100) =112/7 =16再问: (1.25-0.5)*1.6的简便方法 再答: (1.25-0.5)*1.6 =1.25*1.6-0.5*1.6 =1.25*4*0.4-0.5*2*0.8 =5*0.4-0.8 =2-0.8 =1.2 展开全文阅读