72 — 8 * 6 = 72 — 48 = 24(3 + 4) * 9 = 7 * 9 = 6315 + 7 * 5 = 15 + 35 = 5048 : 8 * 9 = 6 * 9 = 547 * (15 — 7) = 7 * 8 = 563 * 8 : 4 = 24 : 4 = 6