4+5+6= 18-9-8= 7+7-7= 11-5+8= 5+8-9= 16-7+4

4+5+6= 18-9-8= 7+7-7= 11-5+8= 5+8-9= 16-7+4=
2025-01-24 11:44:19
推荐回答(1个)
回答1:

4+5+6=15,
18-9-8=1,
7+7-7=7,
11-5+8=14, 5+8-9=4, 16-7+4=13.