37.8×0.075+0.378+0.25×3.78简便运算

分类: 作业答案 • 2022-01-09 18:04:21

问题描述：

答

37.8×0.075+0.378+0.25×3.78
=0.378*7.5+0.378+2.5*0.378
=（2.5+7.5）*0.378+0.378
=3.78+0.378
=4.158