Ответ:

  1. 5072 × 169 = 5072 × (100 + 60 + 9) = 507 200 + 304 320 + 45 648 = 857 168.

  2. 5925 × 637 = 5925 × (600 + 30 + 7) = 3 555 000 + 177 750 + 41 475 = 3 774 225.

  3. 4729 × 793 = 4729 × (700 + 90 + 3) = 3 310 300 + 425 610 + 14 187 = 3 750 097.

  4. 8314 × 211 = 8314 × (200 + 10 + 1) = 1 662 800 + 83 140 + 8 314 = 1 754 254.