334 ⋅ 3 = (300 + 34) ⋅ 3 = 300 ⋅ 3 + 34 ⋅ 3
Сравним выражения:
300 ⋅ 3 + 34 ⋅ 3 и 300 ⋅ 3 + 34 ⋅ 4
Первые слагаемые одинаковые, сравним вторые слагаемые:
34 ⋅ 3 < 34 ⋅ 4
Значит, 334 ⋅ 3 < 300 ⋅ 3 + 34 ⋅ 4
Ответ: 334 ⋅ 3 < 300 ⋅ 3 + 34 ⋅ 4