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746一(501+146)用简便计算
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您好,答案是99746一(501+146)用简便计算=746-146-501=600-501=99希望我的回答可以帮到您![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
咨询记录 · 回答于2022-12-22
746一(501+146)用简便计算
怎么计算
您好,答案是99746一(501+146)用简便计算=746-146-501=600-501=99希望我的回答可以帮到您![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
398÷39
估算
您好,这个是您好,答案是10![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
505÷70估算怎么算
您好,这个是7,7×70=490![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)
398÷39这个估算是错的
我算了也不对答案还是不对
没错呀,398接近390,390÷39=10
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_206.png)