7.2*8.5+14*0.72+72*0.01简便方法算
问题描述：
7.2*8.5+14*0.72+72*0.01简便方法算
答
=72*0.85+72*0.14+72*0.01
=72*（0.85+0.14+0.01）
=72*1
=72