9 • 4 = 36 16 : 4 = 4 5 • 4 = 20 9 + (14 - 5) = 18 4 • 7 = 28 24 - (19 + 4)= 1 4 • 8 = 32 37 + 44 = 81 24 : 4 = 6 62 - 36 = 26