Question

絕對(duì)值是它的相反數(shù)的數(shù)是

0或負(fù)數(shù)

．

Answer 1

分析：根據(jù)絕對(duì)值的意義和相反數(shù)的定義得到絕對(duì)值是它的相反數(shù)的數(shù)為0，絕對(duì)值是它的相反數(shù)的數(shù)為負(fù)數(shù)．

解答：解：0的絕對(duì)值為0，0的相反數(shù)為0，所以絕對(duì)值是它的相反數(shù)的數(shù)為0；
負(fù)數(shù)的絕對(duì)值等于它的相反數(shù)，所以絕對(duì)值是它的相反數(shù)的數(shù)為負(fù)數(shù)．
故答案為0或負(fù)數(shù)．

點(diǎn)評(píng)：本題考查了絕對(duì)值：若a＞0，則|a|=a；若a=0，則|a|=0；若a＜0，則|a|=-a．也考查了相反數(shù)．