用简便方法技术37.25.4+6.2854

分类: 作业答案 • 2021-12-31 11:30:59

问题描述：

用简便方法技术37.2*5.4+6.28*54

答

37.2*5.4+6.28*54
=37.2*5.4+62.8*5.4
=(37.2+62.8)*5.4
=100*5.4
=540

用简便方法技术37.2*5.4+6.28*54