( ),( ),( ),2,4,6,7,8,让我填空,我算了半个多小时都说不对,答案是多少?
çæ¡ï¼-8ã-4ã-1ã
8-7=1
ãã7-6=1
6-4=2
ãã4-2=2
2-3=ï¼
ããï¼-3=ï¼ï¼
ï¼ï¼-4=ï¼ï¼ï¼
åï¼ï¼=-1ï¼ï¼ï¼=-4ï¼ï¼ï¼ï¼=-8.
满æ请é纳ã