1.25*0.75+0.125+12.5*0.003的简便计算
问题描述：
1.25*0.75+0.125+12.5*0.003的简便计算
答
原式=0.125*7.5+0.125*1+0.125*0.3
=0.125*（7.5+0.3+1）
=0.125*8.8
=0.125*8*1.1
=1*1.1
=1.1原式不是0.3是0.003