3.17-2.74+4.7+5.29-0.26+6.3

分类: 作业答案 • 2022-04-17 22:17:56

问题描述：

答

3.17-2.74+4.7+5.29-0.26+6.3
=3.17-(2.74+0.26)+(4.7+6.3)+5.29
= 3.17 - 3 + 11 + 5.29
= 0.17+ 16.29
= 16.46