222+575=?,286+532=?,423+644=?
779-46=?,882-204=?,831-392=?
79+?=847,222+?=819,368+?=911
35*8=?,26*9=?,71*3=?
64/4=?,96/3=?,155/5=?
---
?-256=728-405,131+221+303+146=?
819-211=?+312,306+250+245-616=?
279+?+300=937,450+202-180-308=?
205+?-462=208,999-361-160-343=?
虫声夜转稠