下列计算不正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2022-11-08 08:07:28
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【推荐1】下列说法正确的是( )
①最小的负整数是
;②a的相反数是
;③
一定比a大;④当
时,
成立;⑤
和
的值相等
①最小的负整数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb9c306da912756c1292f5a9988d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653a7d2cba5c557c6fec515533a73999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579271a2140f3d248e12be082feae211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690e1dca2f6e7ac4addf2879328f983.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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【推荐2】下列各组数中,最后运算结果相等的是( )
A.102和54 | B.﹣42和(﹣4)2 |
C.﹣55和(﹣5)5 | D.![]() ![]() |
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【推荐1】在数学课上,老师让甲、乙、丙、丁四位同学分别做了一道有理数计算题,你认为做对的同学是( )
甲:
;乙:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e54f38b22a6f15a43089f80adcc0c24.png)
丙:
;丁:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0f5d7dc68946362739600bde62c524.png)
甲:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca780ac1f410e6e025e849b068e00fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e54f38b22a6f15a43089f80adcc0c24.png)
丙:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5a6d3c020d71579db178030e7e5c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0f5d7dc68946362739600bde62c524.png)
A.甲 | B.乙 | C.丙 | D.丁 |
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