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2.753.7+27.50.37 简便计算2.753.7+27.50.37 (简便计算,*是乘号!)

分类: 作业答案 • 2021-12-19 12:02:10

问题描述：

2.75*3.7+27.5*0.37 简便计算
2.75*3.7+27.5*0.37 (简便计算,*是乘号!)

答

2.75*3.7+27.5*0.37
=2.75*3.7+2.75*3.7
=2.75*2*3.7
=5.5*3.7
=20.35

答

2.75*3.7+27.5*0.37
=2.75*3.7+2.75*3.7
=2.75(3.7+3.7)
=2.72*7.4
=20.35