458+345=?,275+406=?,931+722=?
732-31=?,930-688=?,1503-772=?
55+?=875,244+?=1131,1277+?=1636
15*7=?,9*201=?,862*5=?
186/3=?,768/8=?,1692/6=?
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?-205=802-464,165+116+474+392=?
718-206=?+342,593+565+325-1285=?
280+?+393=988,1015+558-497-902=?
216+?-589=562,2158-630-720-496=?
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