Question

絕對(duì)值等于它本身的數(shù)是________，相反數(shù)等于它本身的數(shù)是________．

Answer 1

非負(fù)數(shù)    0
分析：0的絕對(duì)值是0，等于它本身，正數(shù)的絕對(duì)值等于它本身，-0=0，|0|=0，根據(jù)以上內(nèi)容求出即可．
解答：∵0的絕對(duì)值是0，等于它本身，正數(shù)的絕對(duì)值等于它本身，
∴絕對(duì)值等于它本身的數(shù)是非負(fù)數(shù)，
∵只有-0=|0|，
∴相反數(shù)等于它本身的數(shù)是0，
故答案為：非負(fù)數(shù)，0．
點(diǎn)評(píng)：本題考查了相反數(shù)和絕對(duì)值的應(yīng)用，注意：一個(gè)正數(shù)的絕對(duì)值等于它本身，0的絕對(duì)值和相反數(shù)都是0．