6.6×6.2＋0.66×38题目简便计算
问题描述：
6.6×6.2＋0.66×38题目简便计算
答
=6.6x(6.2+3.8)
=6.6x10
=66
6.6×6.2＋0.66×38题目简便计算
=6.6x(6.2+3.8)
=6.6x10
=66