把下列各数在数轴上表示出来,并用“<”连接.
,
,
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753ab9d19befe316e9385ff5677518e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0586285bc9e99181a05e81547dbb76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a848020a0d6420af76ec7bbadc9cdf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d17b708faaad7935ec15c39ac31c4f5.png)
更新时间:2022-10-17 21:51:47
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解答题-问答题
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适中
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【推荐1】画一条数轴,用数轴上的点A、B、C、D分别表示有理数
,
,
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31709669d1e5443a347489a7e1b2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
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【推荐2】化简下列各数,并将化简后的数标在下面数轴上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/8e8d1f16-53b9-4913-9018-06624dd8c068.jpg?resizew=223)
(1)
________
(2)
________
(3)
________
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/8e8d1f16-53b9-4913-9018-06624dd8c068.jpg?resizew=223)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1aa470a428268539400127b8c4a883.png)
(2)
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(3)
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【推荐1】在数轴上表示下列有理数,并用“>”将这些数连接起来:
4,
,
,
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4,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203b4c1b97dcb87dacb9fc636699f86e.png)
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【推荐2】在数轴上画出表示数0.5,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0415147b2dc37f0580c2e64df1f4c337.png)
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解答题-问答题
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适中
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【推荐1】将下列各数在数轴上表示出来,并用“<”连接:
,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719616978944/1633719617355776/STEM/925fae2defe549d9b10df727025ef392.png)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719616978944/1633719617355776/STEM/2fb1b3ff754d4f09993e5f40be0a73a2.png)
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![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719616978944/1633719617355776/STEM/8350a6cd374a4efcaec9de90685fbb8c.png)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719616978944/1633719617355776/STEM/a3626b3bc5da4a8f8970e3d8f796e1a2.png)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719616978944/1633719617355776/STEM/133ee00056714e0e9961982c240be6cf.png)
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【推荐2】求代数式的值
(1)
,其中
;
(2)若
是最大的负整数,
和
互为倒数,
的绝对值为2,求代数式
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1962d1eca8a1b94a9eb06c2fb8049d51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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【推荐3】如图,在数轴上原点O表示0,
点在原点的左侧,所表示的数是
,
点在原点的右侧,所表示的数是
,且满足
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(1)点
,
表示的数分别是多少?
(2)若点
从点
出发沿数轴向右运动,速度为每秒3个单位长度,点
从点
出发沿数轴向左运动,速度为每秒2个单位长度,
,
两点同时出发,并且在点
处相遇,求经过多少秒相遇,并求出点
所表示的数;
(3)在(2)的条件下,若点
运动到
点后按原路原速度立即返回,点
继续按原速度原方向运动,从点
,
在点
处相遇开始,再经过多少秒,
,
两点的距离为15个单位长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c49eebe6f8dfb225b51acdb0290bf8ff.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40bcf3a8f0bdff4da394c2cab6b8182.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/055e03c4-30c2-4f5a-96e8-0743c4b4bb6e.png?resizew=175)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)在(2)的条件下,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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