484+325=?,221+498=?,474+732=?
740-48=?,946-646=?,920-110=?
92+?=895,294+?=705,314+?=942
37*7=?,74*8=?,325*3=?
684/9=?,957/3=?,474/6=?
---
?-269=806-458,174+139+415+112=?
763-255=?+325,584+307+260-916=?
213+?+391=971,429+437-203-336=?
268+?-575=487,999-229-153-492=?
给妹讲故事