Odpowiedź :
Odpowiedź:
(2 * 5 + 4) * 2 = (10 + 4) * 2 = 14 * 2 = 28
(30 - 3 * 6) : 2 = (30 - 18) : 2 = 12 : 2 = 6
42 - (7 + 5 * 2) = 42 - (7 + 10) = 42 - 17 = 25
50 - 45 : 5 + 12 = 50 - 9 + 12 = 41 + 12 = 53
28 - 5 + 3 * 7 = 28 - 5 + 21 = 23 + 21 = 44