计算67.5乘23加450乘6.75加675乘3.2的简便算法

分类: 作业答案 • 2022-01-02 16:18:26

问题描述：

答

=67.5*23+45*67.5+67.5*32
=67.5*（23+45+32）
=67.5*100
=6750

答

67.5x23+450x6.75+675x3.2
=67.5（23+45+32）
=67.5*

答

67.5x23+450x6.75+675x3.2
=675x2.3+4.5x675+675x3.2
=675x(2.3+4.5+3.2)
=675x(2.3+3.2+4.5)
=675x(5.5+4.5)
=675x10
=6750