1) (28 + 17) 12 = 45 12 = 5402) (120 - 45) / 15 = 75 / 15 = 53) 160 / (8 5) = 160 / 40 = 44) (12 + 8) (12 - 8) = 20 4 = 805) (11 12) + (72 / 6) = 132 + 12 = 1446) (176 / 11) - (3 * 5) = 16 - 15 = 1
1) (28 + 17) 12 = 45 12 = 540
2) (120 - 45) / 15 = 75 / 15 = 5
3) 160 / (8 5) = 160 / 40 = 4
4) (12 + 8) (12 - 8) = 20 4 = 80
5) (11 12) + (72 / 6) = 132 + 12 = 144
6) (176 / 11) - (3 * 5) = 16 - 15 = 1