[1.9+1.9*(4.8-3.81)]/(2.9-2.8)

分类: 作业答案 • 2021-11-12 23:47:35

问题描述：

答

[1.9+1.9x(4.8-3.81)]/(2.9-2.8)
=[1.9+1.9x0.99]/0.1
=[1.9+1.881]/0.1
=3.781/0.1
=37.81