5.75除以0.125一1.25x8的简便运算

问题描述:

5.75除以0.125一1.25x8的简便运算

5.75除以0.125=5.75乘以8
(5.75+1.25)*8=7*8=56

原式=5.75*8-1.25*8
=(5.75-1.25)*8
=4.5*8
=36