3.9+3.5x6.1+6.5简算怎么做
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解决时间 2021-02-13 01:32
- 提问者网友:你独家记忆
- 2021-02-12 06:18
3.9+3.5x6.1+6.5简算怎么做
最佳答案
- 五星知识达人网友:人间朝暮
- 2021-02-12 07:00
3.9+3.5*6.1+6.5
=3.9+3.5*6.1+10-3.5
=3.9+3.5*(6.1-1)+10
=13.9+3.5*5.1
=13.9+3.5*(5+0.1)
=13.9+3.5*5+3.5*0.1
=13.9+17.5+0.35
=31.75
=3.9+3.5*6.1+10-3.5
=3.9+3.5*(6.1-1)+10
=13.9+3.5*5.1
=13.9+3.5*(5+0.1)
=13.9+3.5*5+3.5*0.1
=13.9+17.5+0.35
=31.75
全部回答
- 1楼网友:狂恋
- 2021-02-12 07:43
3.9+3.5x6.1+6.5=3.9+3.5*(6+0.1)+6.5
=10.4+21+0.35=31.75
=10.4+21+0.35=31.75
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