1 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
______ 无理数.(填“是”或“不是”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
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2023-11-18更新
|
39次组卷
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2卷引用:湖南省长沙市望城区长郡斑马湖中学2023-2024学年七年级下学期第一次月考数学试题
名校
2 . 在实数
,
,
,
,
,0,
,
,
(相邻两个3之间依次多个0)中,无理数有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8b2ddd6646a556f0a0e0ab5b15c9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94de4f4d291d88b8209e2b054a0c16b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa52f02d7839b0b15113e16b9e9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2584c0e30e6595b1bfdfaabf3e28a767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8731a2cfa1551e70a3eedae7d5cfeea0.png)
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2023-11-17更新
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47次组卷
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3卷引用:湖南省娄底市2023-2024学年八年级上学期月考数学试题
3 . 在实数
、
、
、0、
中,无理数有______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6817fa9040c930ffacd5d4b7739b15d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c81b1a84321a0dbbde74ba324fe92a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08067d3cfadb40cba3d0180d75316f8.png)
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4 . “两个整数相除,如果永远都除不尽,那么结果一定是一个无理数”,这是一个______ 命题.(真或假)
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5 . 如图是一个数值转换器,当输入
为
时,输出
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbfdbcb4d514daa81d6d039bbb29044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/1206f3e5-ab3f-4b9b-8130-c1cf4177b514.png?resizew=296)
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6 . 请举例说明:
①两个无理数之和是有理数的情况:____________________
②两个无理数之积是有理数的情况:____________________ .
①两个无理数之和是有理数的情况:
②两个无理数之积是有理数的情况:
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2023-10-31更新
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51次组卷
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2卷引用:河南省商丘市实验中学2022-2023学年七年级下学期第二次月考数学试题
7 . 任意写出
到
之间一个无理数___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
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2023-10-28更新
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88次组卷
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2卷引用:山西省临汾市两县一市2023-2024学年八年级上学期月考数学试题
8 . 在下列各数 中无理数有______________ 个.
,
,
,
,
,
,
,
,
,
,0,0.5757757775……(相邻两个5之间的7的个数逐次加1).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55df059a3e31d7decf2e2a657541d43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68e594212cf2a24501a758adfcae885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8b4bbd2f9912adfc9864c0e1e76a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb7681752406ae80767c070f717785f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071ff10740d0ef09e9b6ab0bf8a92283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846a5af6731da77ce88b8744ac4a1c22.png)
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名校
9 . 下列6个数:
,
,
,
,
,
中,无理数有________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75096deb06fa2aeaace0ec13f59c9ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099a00b2b9b18be09eac9d3aed907909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9dd7a3e5707cc2db04e04c88070764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9844c14ff7b2ec28db4ade1a7ffc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c5e81c259f9f8a7a1bfd8698f7237a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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名校
10 . 在下列四个说法中:①
;②每个实数都有一个立方根;③无理数与无理数的和一定也是无理数;④全体实数和数轴上的点一一对应.正确的是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302942f4319f4e7e70ce3d9c6c3cc956.png)
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2023-10-24更新
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85次组卷
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2卷引用:辽宁省沈阳市和平区第一二六中学2023-2024学年八年级上学期10月月考数学试题