巧算 12.5 * (36-7 1/5)除以3.6
问题描述：
巧算 12.5 * (36-7 1/5)除以3.6
答
12.5 * (36-7 又1/5)除以3.6
=12.5*36÷3.6-12.5*7.2÷3.6
=12.5*10-12.5*2
=125-25
=100