计算67.5乘23加450乘6.75加675乘3.2的简便算法_数学解答

计算67.5乘23加450乘6.75加675乘3.2的简便算法

人气：380 ℃　时间：2020-04-07 15:58:23

解答

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