(360/15-2.5*1.4),怎样简便计算?(360/15-2.5*1.4),这道简便计算题怎么简算?
问题描述:
(360/15-2.5*1.4),怎样简便计算?
(360/15-2.5*1.4),这道简便计算题怎么简算?
答
360/15-(2.5*0.4+2.5*1)
=24-(1+2.5)
=24-3.5
=20.5
应该是这样了,好久没做了