已知a是最小的正整数,b是绝对值最小的有理数,c的倒数是﹣2,d的绝对值是3.求a﹣c﹣b﹣|d|的值.
更新时间:2021-11-04 17:39:02
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【推荐1】把下列各数填入相应的集合中:
,
,
,
,
,
,
,
,
,
,
(每相邻两个
之间
的个数逐次加1).
正分数集合:
______
;
正整数集合:
______
;
整数集合:
______
;
有理数集合:
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c5f697359886700a47bc94bebae8d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89e3f457544f1a385e4b60885f0b28d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d9cd24d313c7a912f4533dfcb1db4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6489852d310f01375f213b3bdf0406c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a316c27ccf35e5e9b4294364985927dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf62a2b3b2c4883a2421c8bf2a184d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212968ec4ac42925c8282d6bfd6f698f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
正分数集合:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411cf850fd4ef2a3f344471fbe3a4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f8457020e55058e76345ac87c1ab1c.png)
正整数集合:
![](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)
有理数集合:
![](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】在下列各数中:7,
,
,
,
, 0, +2,-7, 1.25.
负整数是{ }
负分数是{ }
整数是{ }
负数是{ }
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92412278d3167d5b7e25206fa23d9f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20d37ff04d869d2709c7ae40f9d66e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ab109ec88d6f3d24b2f01ca77e7038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5205746cd1bdf4c291379440c862bf5.png)
负整数是{ }
负分数是{ }
整数是{ }
负数是{ }
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【推荐1】若a、b互为相反数,c的绝对值为2,m与n互为倒数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4bfbf170b226c795f3e46de78d94fe.png)
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名校
【推荐2】某日,光头强与熊大、熊二在山坡上相遇,光头强准备和熊二比数学知识决定能否上山砍树,熊大做裁判,熊二出的题目如下:
请帮助光头强完成上述6题,能让他顺利到山上去砍树,否则他就会被老板炒鱿鱼了.
(1)__________ (2) ________ (3) _________
(1)绝对值最小的有理数:
(2)绝对值等于本身的数:
(3)相反数等于本身的数:
(4)倒数等于本身的数:
(5)平方等于本身的数:
(6)立方等于本身的数:
请帮助光头强完成上述6题,能让他顺利到山上去砍树,否则他就会被老板炒鱿鱼了.
(1)__________ (2) ________ (3) _________
(4) ___________ (5) ___________ (6)_______
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【推荐1】探究思考题:
(1)用“<”,“=”或“>”填空:
①
___
; ②
___
;
③
___
; ④
___
;
(2)猜想:当a,b同号时,
____
;当a,b异号时,
____
;(用“<”,“=”或“>”填空)
(3)猜想;对于两个有理数a,b,有
____
(用“≤”或“≥”填空)
(1)用“<”,“=”或“>”填空:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2feac915c9f6193691c9f8ef7b9a4709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51cc5da2bc7abe1b04bd2ce9418c8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0b373af68f5c835173eaf4b3ce7361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1b7f29a8db606adfbca71c7d3dde92.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7161a8c608bb63a998a4f380a642f79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5d031c6d95343e04fee8c5644c415f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee35d6a01f28cac34f9bf92c312bd30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ca2a54a1bc4e90584f335ec7538349.png)
(2)猜想:当a,b同号时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06b6db35c20c3c9e578e76eeafae014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8e30cb99e41a01e0d2eddc1ebef612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06b6db35c20c3c9e578e76eeafae014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8e30cb99e41a01e0d2eddc1ebef612.png)
(3)猜想;对于两个有理数a,b,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06b6db35c20c3c9e578e76eeafae014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8e30cb99e41a01e0d2eddc1ebef612.png)
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【推荐1】若a、b互为倒数,c、d互为相反数,m为最大的负整数,n的绝对值为2.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13ad3fe5ff17e918d82b472064cb7c6.png)
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