(1)66 - 4 = (2)71 - 9 = (3)50 - 1 = (4)60 - 9 = (5)26 - 9 = (6)24 - 8 = (7)13 - 4 = (8)32 - 1 = (9)29 - 5 = (10)30 - 1 = (11)48 - 7 = (12)36 - 1 = (13)74 - 2 = (14)34 - 1 = (15)61 - 4 =