已知有理数
,
,
,且
.
(1)如图,在数轴上将
、
、
三个数填在相应的括号中;
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620363992555520/2623933356015616/STEM/67c0c53c-eae5-4a8f-a7e6-5649662ef202.png?resizew=364)
(2)判断下列各式的正负:
,
,
,
(3)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faac62bd2b9359666cb0ad39e9ad7520.png)
(1)如图,在数轴上将
![](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/2020/12/23/2620363992555520/2623933356015616/STEM/67c0c53c-eae5-4a8f-a7e6-5649662ef202.png?resizew=364)
(2)判断下列各式的正负:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8409329b550296446a936d97c491ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db8d3facff8f90f28a936fc5b3ab878.png)
(3)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49a7f7cd05889ac931fdd2d8b3861fb6.png)
更新时间:2020-12-28 15:08:59
|
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解答题-问答题
|
较易
(0.85)
【推荐1】已知有理数
在数轴上的位置如图所示,
(1)分别判断以下式子的符号(填“
”或“
”或“
”):
;
;
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/0493c9c0-f925-4b9d-a020-90e22b1209fc.png?resizew=201)
(1)分别判断以下式子的符号(填“
![](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/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8409329b550296446a936d97c491ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db8d3facff8f90f28a936fc5b3ab878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6860e4ad07e93195741159f04c6a49fe.png)
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解答题-计算题
|
较易
(0.85)
【推荐2】已知a,b,c在数轴上对应点的位置如图所示,化简:|a|-|a+b|+
+|b-c|.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f7e802d6f9387f7797cc8bddb48c36.png)
![](https://img.xkw.com/dksih/QBM/2019/2/18/2143326742249472/2144291559301120/STEM/1c292d11ca794cfda6bdd22c09153b5c.png?resizew=197)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】有理数
、
、
,在数轴上的位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/aec32a19-52cf-4284-ada3-c4b05fc8a9a3.png?resizew=150)
(1)
_______0;
_______0;(用“
、
、
”填空)
(2)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/2024/2/13/aec32a19-52cf-4284-ada3-c4b05fc8a9a3.png?resizew=150)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
![](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/6706fe00b4e231e62d9ecbec567d526b.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff0c308459b477b706d792e957287bf.png)
您最近一年使用:0次