题目内容
直接写出答案:
(1)=____________; (2)=____________;
(3)=____________; (4)_______________;
(1)=____________; (2)=____________;
(3)=____________; (4)_______________;
(1) (2) -2 (3) (4) 12000
(1)==
(2)=5-7=-2
(3)=(4)12000
(2)=5-7=-2
(3)=(4)12000
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