218+536=?,266+560=?,413+616=?
787-98=?,824-281=?,875-388=?
48+?=863,295+?=872,382+?=968
28*5=?,36*6=?,47*9=?
159/3=?,279/9=?,516/6=?
---
?-267=781-423,143+249+316+126=?
840-233=?+392,317+232+298-650=?
229+?+325=942,491+207-136-388=?
246+?-458=229,999-305-110-331=?
空山新雨后