6.58×4.5×0.9最简便的运算方法.
问题描述：
6.58×4.5×0.9最简便的运算方法.
答
6.58*4.5*0.9
=3.29*9*0.9
=3.29*8.1
=(3.3-0.01)*(8+0.1)
=26.4-0.08+0.33-0.001
=26.73-0.081
=26.649