5.6乘以9加56乘以0.1简便计算
问题描述：
5.6乘以9加56乘以0.1简便计算
答
5,6*9+56*0.1
=56*0.9+56*0.1
=56*(0.9+0.1)
=56
不明白欢迎来求助!
多谢了!