1.25+0.75*0.54怎么简算
问题描述:
1.25+0.75*0.54怎么简算
1.25+0.75*0.54能不能简算,写出来.
答
1.25+0.75*0.54
=0.25*5+0.3*0.25*0.54
=0.25(5+0.3*0.54)
=0.25*(5+1.62)
=0.25*6.62
=0.5*3.31
=1*3.31/2
=1.655