12+12-12-12-12-12+99-21-12-12+789-123-123+789=

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/08 07:49:45
12+12-12-12-12-12+99-21-12-12+789-123-123+789=

12+12-12-12-12-12+99-21-12-12+789-123-123+789=
12+12-12-12-12-12+99-21-12-12+789-123-123+789=

12+12-12-12-12-12+99-21-12-12+789-123-123+789=
1362

12 12! 12, 12, 12 12, 12： 12 12 12 12 12, 12, 12 12 12, 12, 12