Question

絕對(duì)值最小的數(shù)是________；若|x|=2008，則x=________．

Answer 1

0    ±2008
分析：根據(jù)絕對(duì)值性質(zhì)可知絕對(duì)值最小的數(shù)是0；因?yàn)閨2008|=2008，|-2008|=2008，所以x=±2008．
解答：根據(jù)絕對(duì)值性質(zhì)得，絕對(duì)值最小的數(shù)是0；若|x|=2008，則x=±2008．
點(diǎn)評(píng)：此題考查了絕對(duì)值的性質(zhì)，要求掌握絕對(duì)值的性質(zhì)及其定義，并能熟練運(yùn)用到實(shí)際運(yùn)算當(dāng)中．第二空是絕對(duì)值性質(zhì)的逆向運(yùn)用，此類題要注意答案一般有2個(gè)，除非絕對(duì)值為0的數(shù)才只有一個(gè)．
絕對(duì)值規(guī)律總結(jié)：一個(gè)正數(shù)的絕對(duì)值是它本身；一個(gè)負(fù)數(shù)的絕對(duì)值是它的相反數(shù)；0的絕對(duì)值是0．