-4,2,6,7,1,-6,-3,( ),5,4,1,-3 括号里填啥啊?
问题描述:
-4,2,6,7,1,-6,-3,( ),5,4,1,-3 括号里填啥啊?
答
-4,2,6,7,1,-6,-3,( ),5,4,1,-3
每三个一组
2=6+(-4)
1=7+(-6)
1=4+(-3)
()=-3+5
所以()=2