246+507=?,254+585=?,416+621=?
712-32=?,861-206=?,860-373=?
90+?=891,202+?=859,318+?=907
36*4=?,62*7=?,83*3=?
132/6=?,135/5=?,480/4=?
---
?-220=759-435,190+288+333+111=?
809-268=?+336,346+215+264-651=?
217+?+346=924,480+259-137-350=?
253+?-408=247,999-321-117-380=?
林枫欲老柿将熟