有理数
、
、
在数轴上的位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4479d5a4-abb8-49bb-bd29-014686e02104.png?resizew=230)
(1)用“
”或“
”填空:
______0,
______0;
(2)
______,
______;
(3)化简:
.
![](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)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4479d5a4-abb8-49bb-bd29-014686e02104.png?resizew=230)
(1)用“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa17a39f52e09981729af4439ca535.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5154ce098d83928b357e01070762413a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db41f50b8bcf18cd36367a46038768ae.png)
(3)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ab05ecfc3be35d03e13f30c873c5b8.png)
更新时间:2022-12-18 09:42:29
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【推荐2】如图是重庆市地铁一号线部分站点示意图.某天,佳佳参加地铁志愿者服务活动,从两路口出发,最后在
站结束服务活动.如果规定向沙坪坝方向为正,佳佳当天的乘车站数按先后顺序依次记录如下(单位;站):
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/27/89a2aad4-ba65-4d5d-801c-6be4df2fced9.png?resizew=423)
(1)请通过计算说明
站是哪一站?
(2)若相邻两站之间的平均距离约为
千米,求这次佳佳志愿服务期间乘坐地铁行进的总路程约是多少千米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291316943e180203d47388a9191d8125.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/27/89a2aad4-ba65-4d5d-801c-6be4df2fced9.png?resizew=423)
(1)请通过计算说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若相邻两站之间的平均距离约为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73833ea2fd757b3739d3eb634aa96e00.png)
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