12.5x0.9X0.8简便计算
问题描述:
12.5x0.9X0.8简便计算
答
(12.5×0.8)×0.9
=10×0.9
=9
12.5x0.9X0.8简便计算
(12.5×0.8)×0.9
=10×0.9
=9