(1)16 - 6 = (2)12 - 3 = (3)16 - 9 = (4)17 - 9 = (5)11 - 9 = (6)18 - 8 = (7)11 - 1 = (8)16 - 7 = (9)16 - 6 = (10)14 - 4 = (11)18 - 8 = (12)11 - 3 = (13)17 - 7 = (14)12 - 6 = (15)18 - 9 =
