把下列各数序号填入相应集合括号内:
①
;②
;③
;④0;⑤
;⑥
;⑦
;⑧
;⑨
.
(1)正数集合:{________________…};
(2)非负整数集合:{________________…}.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e412d5801507e37a105d0542ad4a982d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054686b405b3874fc7fbc81354578f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97afde1fea465cf9d09d4175928415b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d8b9ca45dab3fbc82abb407181f6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18366f0d5450741efd0ead1a421b2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3528d985a77044680e3fb9bd49c8e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3c27ec6e8a04cc194b00346c354ff5.png)
(1)正数集合:{________________…};
(2)非负整数集合:{________________…}.
更新时间:2023-01-17 18:21:57
|
相似题推荐
解答题-问答题
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适中
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【推荐1】把下列各数填入相应的大括号里:
,
,
,
,
,
,
,
,
,
.
正有理数集合
______
;
非负整数集合
______
;
整数集合
______
;
正分数集合
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a94acdfb41489d5694b5a64b9e99754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d3bf727f6c78896544c7f6c8ff33ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379b3a5fb2be485752dca0774a13b559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363074603d5a92ce12d8024c1f61a18d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3ffbe2f42697849c112edad823e7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a157370d7192aad302919f7d828521bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ab5c1b86983380e75e0d12ddc92705.png)
正有理数集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411cf850fd4ef2a3f344471fbe3a4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f8457020e55058e76345ac87c1ab1c.png)
非负整数集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411cf850fd4ef2a3f344471fbe3a4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f8457020e55058e76345ac87c1ab1c.png)
整数集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411cf850fd4ef2a3f344471fbe3a4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f8457020e55058e76345ac87c1ab1c.png)
正分数集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411cf850fd4ef2a3f344471fbe3a4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f8457020e55058e76345ac87c1ab1c.png)
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【推荐2】把下列各数对应的序号填在相应的横线上.(只填序号,多填或者少填不给分)
① -8,②π,③
, ④
,⑤
,⑥ -0.9,⑦ 5.4,⑧
,⑨ 0,⑩
,⑪1.2020020002…(每两个2之间多一个0)
整数:_______________;
负分数:_______________;
无理数:_______________;
正有理数 :_______________.
① -8,②π,③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf1f590fb6281c05d147ed89b28deda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f3fae1304b36c0aa24d98d4ae0508b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103d54e4b5a6e8dc9c09dbda1179c60c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db46d892a8554620a901634a34bf3351.png)
整数:_______________;
负分数:_______________;
无理数:_______________;
正有理数 :_______________.
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【推荐1】已知五个数分别为:
.
在数轴上表示下列各数,并按从小到大的顺序用“
”把这些数连接起来;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63395ea5d841234871e5388bde6d41ff.png)
在数轴上表示下列各数,并按从小到大的顺序用“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
您最近一年使用:0次
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【推荐2】在数轴上表示下列各数,并用“
”号把它们连接起来.
,
,
,
, 0, ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f1a480438deb29d8ceeec5c5a34096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245cfeb9e110dc59e95346cdf7faf140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a2e25691e583a64819323ecd136962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c38444fae9951fced3ec679c1abe4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b1e19c4376c11bc8f7c25dd2ab6771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f1a480438deb29d8ceeec5c5a34096.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/3a3f30d7-abb2-4a40-90fc-31fbb4a97b62.png?resizew=340)
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【推荐1】小红到文具店买日记本,日记本的单价已看不清楚,她买了3本日记本,售货员阿姨说应付31元,小红认为不对.你能解释这是为什么吗?
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名校
【推荐2】【概念学习】
规定:求若干个相同的有理数(均不等于0)的除法运算叫做除方.如
,
等.类比有理数的乘方,我们把
记作
,读作“2的圈3次方”,
记作
,读作“
的圈4次方”,一般地,把
记作
,读作“a的圈c次方”.
(1)【初步探究】
直接写出计算结果:
____________,
____________.
(2)关于除方,下列说法错误的是__________.
A.任何非零数的圈2次方都等于1; B.对于任何正整数
﹔
C.
; D.负数的圈奇数次方结果是负数,负数的圈偶数次方结果是正数.
(3)【深入思考】我们知道,有理数的减法运算可以转化为加法运算,除法运算可以转化为乘法运算,有理数的除方运算如何转化为乘方运算呢?
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/3613fde4-e8c8-4fb6-b122-928318d0ce21.png?resizew=225)
①试一试.仿照上面的算式,将下列运算结果直接写成幂的形式.
_________________;
_________________;
________________;
②想一想:将一个非零有理数a的圈n次方写成幂的形式等于______________;
③算一算:
____________.
规定:求若干个相同的有理数(均不等于0)的除法运算叫做除方.如
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbfa18465de74e7a3a414704f38ba39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbada1b68a9ef62fa4375799eb9bfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbfa18465de74e7a3a414704f38ba39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62ba56692ea408c868037cb082c5d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbada1b68a9ef62fa4375799eb9bfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df1191c76b35c12934a6ba5bf43575c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b271b63185b99c572c5419af9990947e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdaf704049a30c1219cbb0b40f3eb4c.png)
(1)【初步探究】
直接写出计算结果:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9cd02022523ccf7d70ad186993a102b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a30c99042b6460c60fe041b3467e08.png)
(2)关于除方,下列说法错误的是__________.
A.任何非零数的圈2次方都等于1; B.对于任何正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7852bcd3275602e7c2f5abe28b63f57.png)
C.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a052c2ae5f34e5b112e3068d2b08dd.png)
(3)【深入思考】我们知道,有理数的减法运算可以转化为加法运算,除法运算可以转化为乘法运算,有理数的除方运算如何转化为乘方运算呢?
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/3613fde4-e8c8-4fb6-b122-928318d0ce21.png?resizew=225)
①试一试.仿照上面的算式,将下列运算结果直接写成幂的形式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f11c21c8f5868c175a7717fc44b2694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e7032be975c1cebfb38776905b3e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74769f938ed72027cf13d8296cd6e4be.png)
②想一想:将一个非零有理数a的圈n次方写成幂的形式等于______________;
③算一算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087df4df4542e71ed3493b24116df791.png)
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解答题-计算题
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解题方法
【推荐2】概念学习
规定:求若干个相同的有理数(均不等于0)的除法运算叫做除方,如2÷2÷2,(﹣3)÷(﹣3)÷(﹣3)÷(﹣3)等.类比有理数的乘方,我们把2÷2÷2记作2③,读作“2的圈3次方”,(﹣3)÷(﹣3)÷(﹣3)÷(﹣3)记作(﹣3)④,读作“﹣3的圈4次方”,一般地,把
记作
,读作“a的圈n次方”.
初步探究
(1)直接写出计算结果:2③=________,
⑤=________;
(2)关于除方,下列说法错误的是________.
A.任何非零数的圈2次方都等于1;
B.对于任何正整数n,1ⓝ=1;
C.3④=4③;
D.负数的圈奇数次方结果是负数,负数的圈偶数次方结果是正数
深入思考
我们知道,有理数的减法运算可以转化为加法运算,除法运算可以转化为乘法运算,有理数的除方运算如何转化为乘方运算呢?
![](https://img.xkw.com/dksih/QBM/2021/10/15/2829778559401984/2842489026994176/STEM/5df3437f-b21e-4ff5-838e-9d3779e2fb7f.png?resizew=300)
(1)试一试:仿照上面的算式,将下列运算结果直接写成幂的形式.(﹣3)④=________;5⑥=________;
________.
(2)想一想:将一个非零有理数a的圈n次方写成幂的形式等于________;
(3)算一算:24÷23+(﹣16)×2④.
规定:求若干个相同的有理数(均不等于0)的除法运算叫做除方,如2÷2÷2,(﹣3)÷(﹣3)÷(﹣3)÷(﹣3)等.类比有理数的乘方,我们把2÷2÷2记作2③,读作“2的圈3次方”,(﹣3)÷(﹣3)÷(﹣3)÷(﹣3)记作(﹣3)④,读作“﹣3的圈4次方”,一般地,把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e65705aa02f9e462588e0cd579d896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2752d0a7e2e663923179e566ddc74aa8.png)
初步探究
(1)直接写出计算结果:2③=________,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb91bc11d2fd9933cda5c3b7b3c785f.png)
(2)关于除方,下列说法错误的是________.
A.任何非零数的圈2次方都等于1;
B.对于任何正整数n,1ⓝ=1;
C.3④=4③;
D.负数的圈奇数次方结果是负数,负数的圈偶数次方结果是正数
深入思考
我们知道,有理数的减法运算可以转化为加法运算,除法运算可以转化为乘法运算,有理数的除方运算如何转化为乘方运算呢?
![](https://img.xkw.com/dksih/QBM/2021/10/15/2829778559401984/2842489026994176/STEM/5df3437f-b21e-4ff5-838e-9d3779e2fb7f.png?resizew=300)
(1)试一试:仿照上面的算式,将下列运算结果直接写成幂的形式.(﹣3)④=________;5⑥=________;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eebf1b5e9507595d6162fc130217ef.png)
(2)想一想:将一个非零有理数a的圈n次方写成幂的形式等于________;
(3)算一算:24÷23+(﹣16)×2④.
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