下列各组数中,互为相反数的是( ) A.+(+5.2)与-5.2 B.+(-5.2)与-5.2 C.-(-5.2)与|+5.2| D.|-5.2|与+(+5.2)
问题描述:
下列各组数中,互为相反数的是( )
A. +(+5.2)与-5.2
B. +(-5.2)与-5.2
C. -(-5.2)与|+5.2|
D. |-5.2|与+(+5.2)
答
A、+(+5.2)=+5.2,∴+5.2和-5.2互为相反数,故本选项正确;
B、+(-5.2)=-5.2,∴-5.2与-5.2不能互为相反数,故本选项错误;
C、-(-5.2)=5.2,|+5.2|=5.2,∴-(-5.2)与|+5.2|不能互为相反数,故本选项错误;
D、|-5.2|=5.2,+(+5.2)=5.2,∴|-5.2|与+(+5.2)不能互为相反数,故本选项错误;
故选A.