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(1.3十1.25)x8脱式计算
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亲~脱式计算过程如下:(1.3十1.25)x8=1.3×8+1.25×8=10.4+10=20.4
咨询记录 · 回答于2023-04-24
(1.3十1.25)x8脱式计算
亲~脱式计算过程如下:(1.3十1.25)x8=1.3×8+1.25×8=10.4+10=20.4
这道题可以利用乘法分配律,用括号里的各项,分别和8进行相乘,这样计算起来就比较简单了哦
亲~1.25×8可以直接进行口算哦
就等于100![](https://s.bdstatic.com/common/openjs/emoticon/img/face_02.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_02.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_02.png)
不好意思,刚才打错了![](https://s.bdstatic.com/common/openjs/emoticon/img/face_21.png)
1.25×8=10所以,答案为20.4哦
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_21.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_21.png)