Решим примеры:
1) 3 010 – 5 614 : 7 + 9 042 = 3010 - 802 + 9042 = 11250
2) (40 179 – 15 395 : 5) × 4 = (40 179 - 3079) × 4 = 37100 × 4 = 148400
3) (90 – 42 : 3 × 2) : 2 = (90 - 14 × 2) : 2 = (90 - 28) : 2 = 62 : 2 = 31
4) 15 × (54 : 3 – 84 : 7) = 15 × (18 - 12) = 15 × 6 = 90
Ответ: 11250; 148400; 31; 90