38.4乘187-13.4乘384+5.3乘16简便计算
问题描述:
38.4乘187-13.4乘384+5.3乘16简便计算
答
(38.4 x 187) - (13.4 x 384) + (5.3 x 16)
=7180.8 - 5145.6 + 84.8
=2120.0