(简便计算)1994.579+0.24790+244.9=

分类: 作业答案 • 2022-07-05 18:03:20

问题描述：

(简便计算)1994.5*79+0.24*790+244.9=

答

1994.5*79+0.24*790+244.9
=1994.5*79+2.4*79+3.1*79
=(1994.5+2.4+3.1)*79
=2000*79
=158000

(简便计算)1994.5*79+0.24*790+244.9=