羊圈里白羊的只数比黑羊的脚数少,黑羊的只数比白羊的脚数少,则白羊有______只,黑羊有______只.
若|a|=2,|b|=6,a>0>b,则a+b=_____.
有理数6的相反数是_______.
2014的相反数是____.
﹣2011的绝对值是_____.
﹣(﹣6)的相反数是_____.