0.75*65+3/4*34+75% 简算

问题描述:

0.75*65+3/4*34+75% 简算

你好:

0.75*65+3/4*34+75%
=0.75×65+0.75×34+0.75×1
=0.75×(65+34+1)
=0.75×100
=75