0.790.46+7.90.053+0.0079用简算怎么算?

分类: 作业答案 • 2022-03-01 13:26:10

问题描述：

0.79*0.46+7.9*0.053+0.0079用简算怎么算?

答

0.79*0.46+7.9*0.053+0.0079
=0.79*0.46+0.79*0.53+0.79*0.01
=0.79*(0.46+0.53+0.01)
=0.79

0.79*0.46+7.9*0.053+0.0079用简算怎么算?