87.5*0.25+75*87.5%
问题描述:
87.5*0.25+75*87.5%
12.5*0.25+75*87.5%
25.3-12*24%+0.72
(1-50%*二分之一)/15%
能简便计算的要简便
过程啊!
答
=0.875*25+75*0.875
=0.875*(25+75)
=0.875*100
=87.512.5*0.25+75*87.5%25.3-12*24%+0.72(1-50%*二分之一)/15%