填空、观察结果,并总结规律.
①-( +4)=_________,-(+)=_________,-(+0.1)=_________;
②-(-4)=_________,-(-)=_________,-(-102)=_________;
③-0=_________.
归纳:(1)正数的相反数是_________;
(2)负数的相反数是_________;
(3)0的相反数是_________;
(4)相反数等于它本身的数是_________;
(5)相反数大于它本身的数是_________;
(6)相反数小于它本身的数是_________.
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