7.3乘2.7加3.7乘7.2能简算吗?_数学解答

7.3乘2.7加3.7乘7.2能简算吗?

人气：494 ℃　时间：2020-02-06 10:51:47

解答

7.3x2.7+3.7x7.2
=7.3x3x0.9+3.7x8x0.9
=0.9x(7.3x3+3.7x8)
=0.9x(21.9+29.6)
=0.9x51.5
=46.35