Question

求下列各數(shù)的相反數(shù)與絕對(duì)值：
的相反數(shù)是________，絕對(duì)值是________；0的相反數(shù)是________，絕對(duì)值是________.的相反數(shù)是________，絕對(duì)值是________．

Answer 1

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分析：根據(jù)相反數(shù)，絕對(duì)值的概念和性質(zhì)分別解答即可．
解答：∵-是負(fù)數(shù)，根據(jù)正數(shù)的相反數(shù)是正數(shù)，負(fù)數(shù)的相反數(shù)是負(fù)數(shù)，0的相反數(shù)是它本身．
∴-的絕對(duì)值是；相反數(shù)是；
0的相反數(shù)是它本身0，以及0的絕對(duì)值也是它本身0，
∵-2負(fù)數(shù)，根據(jù)正數(shù)的相反數(shù)是正數(shù)，負(fù)數(shù)的相反數(shù)是負(fù)數(shù)，
∴-2的相反數(shù)是2-，-2的絕對(duì)值是2-．
故答案為：，，0，0，2-，2-．
點(diǎn)評(píng)：本題考查的是絕對(duì)值，相反數(shù)的概念和性質(zhì)．正數(shù)的相反數(shù)是正數(shù)，負(fù)數(shù)的相反數(shù)是負(fù)數(shù)，相反數(shù)等于它本身的數(shù)是0；正數(shù)和零的絕對(duì)值是它本身，負(fù)數(shù)的絕對(duì)值是正數(shù)．