计算:
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a169664f2739cb9e8552899b863eb948.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baadc1052dbfbc1af10b7ad979e306ad.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ca2c423a2cab3d84259e81a1487221.png)
2022七年级下·上海·专题练习 查看更多[2]
(已下线)第02讲 实数的运算(核心考点讲与练)-2021-2022学年七年级数学下学期考试满分全攻略(沪教版)(已下线)12.6 实数的运算(分层练习)-2022-2023学年七年级数学下册同步精品课堂(沪教版)
更新时间:2022-05-30 11:01:20
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解答题-计算题
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适中
(0.65)
【推荐1】计算下列各题(能简便运算的请简便计算).
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff47144f1ba9535a5b7e3ac6790675f8.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6131af2a837444dfb9e9fc896c7181b.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4349b78b15fd0e20e8135b4783950297.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff47144f1ba9535a5b7e3ac6790675f8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6131af2a837444dfb9e9fc896c7181b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4349b78b15fd0e20e8135b4783950297.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd706056c25a9a81b8b0a0c144fe85a6.png)
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