1) (107 + 96) × 43 + 480 ∶ 12 × 54 = 203 × 43 + 40 × 54 = 8729 + 2160 = 10889
2) (890 – 36 × 4) × 37 – 106 × 8 = (890 - 144) × 37 - 848 = 746 × 37 - 848 = 27602 - 848 = 26754
3) 23 146 × 33 – 12 146 × 33 - 3 174 × 72 = 33 × (23 146 - 12 146) - 3 174 × 72 = 33 × 11 000 - 228 528 = 363 000 - 228 528 = 134 472
Ответ: 1) 10889; 2) 26754; 3) 134472