Найдите значение выражения: 83.479-483.479; 49.68-7650 : 17 + 33; в) 43 + 72.

1) 83 ⋅ 479 − 483 ⋅ 479 = (83 − 483) ⋅ 479 = −400 ⋅ 479 = −191600

2) 49 ⋅ 68 − 7650 ∶ 17 + 33 = 3332 − 450 + 33 = 2815

в) 4³ + 7² = 4 ⋅ 4 ⋅ 4 + 7 ⋅ 7 = 64 + 49 = 113

Ответ: 1) -191600; 2) 2915; в) 113