(12.5+1.25)×0.8简便计算.
问题描述:
(12.5+1.25)×0.8简便计算.
答
=12.5×0.8+1.25×0.8
=10+1
=11
(12.5+1.25)×0.8简便计算.
=12.5×0.8+1.25×0.8
=10+1
=11