化简下面各数符号 (+3),—(—3),+(+3),+(—3)化简下面各数符号(+3),—(—3),+(+3),+(—3)
网友回答
3 ,3 ,3,-3
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======以下答案可供参考======
供参考答案1:
(+3)=3
—(—3)=3
+(+3)=3
+(—3)=-3
供参考答案2:
(+3)=3
,—(—3)=3,+(+3)=3,+(—3)=-3供参考答案3:
(+3)=3
-(-3)=3
+(+3)=3
+(-3)=-3
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供参考答案4:
(+3)=3
—(—3)=3
+(+3)=3
+(—3)=-3