1.25*0.75+0.125+12.5*0.003的简便计算_数学解答

1.25*0.75+0.125+12.5*0.003的简便计算

人气：377 ℃　时间：2020-04-04 01:46:47

解答

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