5.6*0.375+0.375*5.4-37.5%
问题描述：
5.6*0.375+0.375*5.4-37.5%
答
5.6*0.375+0.375*5.4-37.5%
=5.6*0.375+0.375*5.4-0.375*1
=0.375*(5.6+5.4-1)
=0.375*10
=3.75