185+565=?,486+412=?,308+740=?
443-15=?,888-445=?,984-340=?
25+?=742,372+?=890,224+?=901
85*9=?,135*5=?,167*6=?
96/6=?,248/4=?,768/8=?
---
?-241=846-435,187+163+459+129=?
875-296=?+355,364+249+229-648=?
291+?+331=922,426+215-179-327=?
247+?-485=367,999-339-190-367=?
夜半钟声到客船