如图一只蚂蚁从点A沿数轴向左直爬3个单位到达点B,点A表示
,设点B所表示的数为m.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5334f447a941000d99872926f437b9.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5334f447a941000d99872926f437b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/889c2ece-6957-4502-8141-c8d009c0b223.png?resizew=263)
更新时间:2023-12-03 19:48:18
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【推荐1】在数轴上,表示数a的点在原点的左侧,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba7843f0a56f5e731c14a4f1edde55f.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba7843f0a56f5e731c14a4f1edde55f.png)
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【推荐2】点A为数轴上表示
的点,先将点A沿数轴向左移动4个单位长度,再沿数轴向右移动7个单位长度到达点B,则点B表示的数是 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
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【推荐2】有理数a,b,c表示的点在数轴上的位置如图,化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4b12b695981aca3f546e403fe7dfbc.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4b12b695981aca3f546e403fe7dfbc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/fa417087-3e29-476e-b608-55614c38f075.png?resizew=215)
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