278+367=?,308+439=?,607+755=? 580-18=?,812-331=?,958-209=? 83+?=605,454+?=788,265+?=935 84*7=?,6*118=?,846*4=? 207/3=?,664/8=?,774/9=? --- ?-237=843-333,183+210+330+279=? 774-373=?+285,441+382+213-985=? 242+?+225=956,516+235-319-395=? 462+?-630=458,999-191-377-403=?

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