1.甲>乙,乙
2.若甲數為正數,其相反數則為負數.正數與負數並不相等.
但是0的相反數也是0.所以此種甲數共有1個.
3.否.誠品書店到麥當勞的距離為6,7-11到麥當勞的距離為2.
6的相反數為-6,不等於2.所以不為相反數.
4.共有5個,分別為-2,-1,0,1,2.
5.a可能為6,5,4,3,2,1,0,-1,-2,-3,-4,-5,-6
6.-lbl=-15即lbl=15.所以b可能為15或-15.
7.(1)最大為3,最小為-5
7.(2)-5的絕對值=5,0的絕對值=0.所以-5最大,0最小.
7.(3)共有9個整數,分別為-5,-4,-3,-2,-1,0,1,2,3.
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