作业帮2.5×3.9+25简算````2.5×3.9+25简算````2.5×3.9+25简算````
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/07 17:25:12
2.5×3.9+25简算````2.5×3.9+25简算````2.5×3.9+25简算````
2.5×3.9+25简算````2.5×3.9+25简算````2.5×3.9+25简算````
2.5×3.9+25简算````2.5×3.9+25简算````2.5×3.9+25简算````
2.5×3.9+25
=2.5×（4-0.1）+25
=10+25-0.25
=34.75
2.5×3.9+25简算````2.5×3.9+25简算````2.5×3.9+25简算````
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