7.6+1.4*20/2.8 简便
问题描述:
7.6+1.4*20/2.8 简便
答
7.6+1.4*20/2.8
=7.6+20/2
=7.6+10
=17.6
7.6+1.4*20/2.8 简便
7.6+1.4*20/2.8
=7.6+20/2
=7.6+10
=17.6