计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0caa03fa15b6242b74f75e4a883490f1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b7f2365265ecb8240d40da54c42862.png)
更新时间:2023-12-09 08:01:47
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【推荐2】计算:
(1)12﹣(﹣18)+(﹣7)﹣15;
(2)
;
(3)
;
(4)
.
(1)12﹣(﹣18)+(﹣7)﹣15;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a72f91f9a184270a53b3f7a012ce76.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fd4fce216c08ba83966e37def0392a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ec42a9767e13fa08336efb22d9cafb.png)
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