200 - 30 * 4 = 200 - 120 = 80
(200 - 30) * 4 = 170 * 4 = 680
80 < 680
72 : (4 * 2) = 72 : 8 = 9
72 : 4 * 2 = 18 * 2 = 36
9 < 36
350 : 5 * 2 = 70 * 2 = 140
350 : (5 * 2) = 350 : 10 = 35
140 > 35