(1)43 + 22 = (2)42 + 1 = (3)53 + 4 = (4)27 + 18 = (5)22 + 30 = (6)58 + 26 = (7)20 + 78 = (8)66 - 48 = (9)36 - 28 = (10)32 - 10 = (11)48 + 37 = (12)56 + 7 = (13)85 - 58 = (14)31 - 30 = (15)33 - 6 =
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