:41.2-9.5*1.8/0.45

问题描述:

:41.2-9.5*1.8/0.45
9*(1/9+1/8)*8 快,简便
333+333+999*889

9*(1/9+1/8)*8
=9*8*1/9+9*8*1/8
=8+9
=17