(1)分别写出
,
的相反数;
(2)指出
,
分别是什么数的相反数;
(3)求
的绝对值;
(4)已知一个数的绝对值是
,求这个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0d7704614f7106d3e838c5c121b8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1db9d1756055f3a649fbe484afdc57.png)
(2)指出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071ff10740d0ef09e9b6ab0bf8a92283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b457dd7ded37c2908f3b59d76ce72552.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9882ad48ba6872b185ad2500f03fbc04.png)
(4)已知一个数的绝对值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
20-21七年级下·全国·课后作业 查看更多[1]
(已下线)【人教版课时练习】七年级下册数学第六章实数6.3 实数
更新时间:2021-10-11 12:37:24
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【推荐1】已知
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【推荐2】若
的相反数是最大的负整数,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】已知
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在数轴上的位置如图所示,用不等号填空:![](https://img.xkw.com/dksih/QBM/2023/5/25/3245382489677824/3267733177491456/STEM/250e5118c20b4d369f93ba170c0074e2.png?resizew=192)
(1)
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(2)
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(3)
;
(4)
;
(5)
;
(6)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce22731a412796fe2925e01f765d5976.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccefdce953ac4ac08b5fc0191b85dbd.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
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(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
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【推荐2】检修组乘汽车,沿公路检修线路,约定向东为正,向西为负,某天自A地出发,到收工时,行走记录为(单位:千米) +8、-9、+4、+7、-2、-10、+18、-3、+7、+5.回答下列问题:
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【推荐2】(1)画出数轴,把下列各数
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(2)将上列各数用“<”连接起来.
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