11.1×18.4+44.4×5.4 怎么简便计算?
问题描述:
11.1×18.4+44.4×5.4 怎么简便计算?
答
=11.1×18.4+11.1×4×5.4
=11.1×18.4+11.1×21.6
=11.1×(18.4+21.6)
=11.1×40
=444