0.028*150+2.8*8.5简便方法计算
问题描述:
0.028*150+2.8*8.5简便方法计算
答
0.028*150+2.8*8.5
=2.8*1.5+2.8*8.5
=2.8*(1.5+8.5)
=2.8*10
=28