8.54-39.6/13.2怎样简便 4.53.2+6.36怎样简便 3.25(4.39-2.79）怎样简便

分类: 作业答案 • 2022-01-02 13:26:13

问题描述：

8.54-39.6/13.2怎样简便 4.5*3.2+6.36怎样简便 3.25*(4.39-2.79）怎样简便

答

8.54-39.6/13.2
= 8.54- 3
= 5.54
4.5×3.2+6.36
=14.4 + 6.36
= 20.76
3.25×(4.39-2.79）
= 3.25 × 1.6
= 5.2

答

8.54-39.6/13.2
=8.54-3
=5.54
4.5*3.2+6.36
=14.4+6.36
=20.76
3.25*(4.39-2.79）
=3.24*1.6
=5.184

8.54-39.6/13.2怎样简便 4.5*3.2+6.36怎样简便 3.25*(4.39-2.79）怎样简便