5.5*13.6-0.36*55怎么简便计算?
问题描述:
5.5*13.6-0.36*55怎么简便计算?
答
5.5*13.6-0.36*55
=5.5*13.6-3.6*5.5
=5.5*(13.6-3.6)
=5.5*10
=55