4+?=92,28+?=90,65+?=128
?-42=55,?-31=68,?-87=135
99-?=67,131-?=63,198-?=125
43+68=?,15+117=?,148+155=?
5*7=?,8*3=?,6*6=?
---
?-51=137-42,29+46+32+54=?
98-39=?+44,28+61+39-128=?
13+?+66=101,72+64-91-28=?
56+?-39=123,250-46-115-67=?
对面雷嗔树