Выполните умножение: 1) 858 · 46; 2) 704 · 69; 3) 4 197 · 38; 4) 5 672 · 870; 5) 3 524 · 346; 6) 608 · 505.

1. \(858 \cdot 46 = 858 \cdot (40 + 6) = 34\,320 + 5\,148 = 39\,468\).
2. \(704 \cdot 69 = 704 \cdot (70 - 1) = 49\,280 - 704 = 48\,576\).
3. \(4\,197 \cdot 38 = 4\,197 \cdot (40 - 2) = 167\,880 - 8\,394 = 159\,486\).
4. \(5\,672 \cdot 870 = 5\,672 \cdot 87 \cdot 10 = (453\,760 + 39\,704) \cdot 10 = 4\,934\,640\).
5. \(3\,524 \cdot 346 = 1\,057\,200 + 140\,960 + 21\,144 = 1\,219\,304\).
6. \(608 \cdot 505 = 608 \cdot (500 + 5) = 304\,000 + 3\,040 = 307\,040\).

Ответ: 1) 39 468; 2) 48 576; 3) 159 486; 4) 4 934 640; 5) 1 219 304; 6) 307 040.