0.75+0.75乘16.3+0.75乘2.7的简便算法
问题描述:
0.75+0.75乘16.3+0.75乘2.7的简便算法
0.75+0.75乘16.3+0.75乘2.7的简便算法 快
答
0.75+0.75乘16.3+0.75乘2.7
=0.75×1+0.75×16.3+0.75×2.7
=0.75×(1+16.3+2.7)
=0.75×20
=15