下列计算正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
23-24八年级上·甘肃兰州·期末 查看更多[3]
甘肃省兰州市红古区2023-2024学年八年级上学期期末数学试题(已下线)专题16.9 二次根式的加减(知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)陕西省宝鸡市陇县2023-2024学年八年级下学期期中数学试题
更新时间:2024-01-11 13:03:16
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【推荐1】下列运算正确的有( )
①
;②
;③
;④
;⑤
;⑥![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a3bba58ad1cdcfe149b1f962ccb7aa.png)
①
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A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】小华的作业本上完成了四道题:①
;②
;③
;④
,她做错的题有( )道
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A.3 | B.2 | C.1 | D.0 |
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