225+533=?,279+517=?,406+664=?
774-69=?,887-231=?,810-319=?
19+?=828,260+?=895,346+?=909
23*4=?,61*6=?,18*9=?
21/?=?,76/2=?,108/9=?
---
?-260=788-495,115+257+335+155=?
801-267=?+383,361+196+253-655=?
203+?+328=998,489+279-168-357=?
238+?-429=214,999-390-144-371=?
升班成大哥