Ответ:
- \(358 \cdot 46 = 358 \cdot (40 + 6) = 14\,320 + 2\,148 = 16\,468\).
- \(704 \cdot 69 = 704 \cdot (70 - 1) = 49\,280 - 704 = 48\,576\).
- \(4\,197 \cdot 38 = 4\,197 \cdot (40 - 2) = 167\,880 - 8\,394 = 159\,486\).
- \(5\,672 \cdot 870 = 5\,672 \cdot 87 \cdot 10 = 493\,464 \cdot 10 = 4\,934\,640\).
- \(3\,524 \cdot 346 = 3\,524 \cdot (300 + 40 + 6) = 1\,057\,200 + 140\,960 + 21\,144 = 1\,219\,304\).
- \(608 \cdot 505 = 608 \cdot (500 + 5) = 304\,000 + 3\,040 = 307\,040\).
