24: 4 = 618: 6 × 2 = 18630 - 120 + 240 = 750630 - (120 + 240) = 270(14 + 6) ÷ 2 + 560 = 571200 + 4 × (2 + 3) = 220
24: 4 = 6
18: 6 × 2 = 18
630 - 120 + 240 = 750
630 - (120 + 240) = 270
(14 + 6) ÷ 2 + 560 = 571
200 + 4 × (2 + 3) = 220