410+310=?,229+441=?,426+743=?
788-11=?,919-679=?,945-142=?
28+?=820,229+?=708,337+?=918
59*7=?,6*133=?,835*4=?
291/3=?,440/8=?,837/9=?
---
?-219=844-478,150+148+479+138=?
782-244=?+374,584+313+218-947=?
220+?+351=914,409+452-202-306=?
254+?-509=432,999-264-129-420=?
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