45+?=278,78+?=333,182+?=476
138-64=?,342-123=?,424-288=?
169+119=?,25+274=?,134+264=?
9*3=?,6*7=?,7*4=?
24/3=?,35/5=?,72/?=?
---
?-144=351-135,75+88+44+218=?
325-210=?+48,173+54+105-322=?
89+?+75=252,156+99-78-118=?
154+?-103=145,500-65-213-148=?
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