0.072/87.5+87.5*0.028用简便方法计算
问题描述:
0.072/87.5+87.5*0.028用简便方法计算
答
写错了吧?
0.072*87.5+87.5*0.028
=87.5*0.072+87.5*0.028
=87.5(0.072+0.028)
=87.5*0.1
=8.75