Question

最小的正整數(shù)是

1

；絕對(duì)值最小的數(shù)是

0

；倒數(shù)等于它本身的數(shù)是

±1

．

Answer 1

分析：根據(jù)正整數(shù)、絕對(duì)值的性質(zhì)、倒數(shù)的定義求出即可．

解答：解：最小的正整數(shù)是 1；絕對(duì)值最小的數(shù)是 0；倒數(shù)等于它本身的數(shù)是±1．
故答案為：1；0；±1．

點(diǎn)評(píng)：本題考查了有理數(shù)、絕對(duì)值、倒數(shù)的應(yīng)用，注意：1是最小的正整數(shù)，-1是最大的負(fù)整數(shù)，正數(shù)的絕對(duì)值等于它本身，0的絕對(duì)值是0，負(fù)數(shù)的絕對(duì)值等于它的相反數(shù)，互為倒數(shù)的兩個(gè)數(shù)的乘積為1．