0.75×38+75%×60简算_数学解答

0.75×38+75%×60简算

人气：131 ℃　时间：2020-04-16 07:48:46

解答

0.75×38+75%×60
=0.75×38+0.75×60
=0.75×(38+60)
=0.75×(100-2)
=0.75×100-0.75×2
=75-1.5
=13.5