Вопрос:

Вычислите произведения: 27×23; 67×53; 297×88; 531×64; 454×85; 348×67; 420×30; 809×73; 529×37; 150×83; 917×16; 624×86; 387×65; 539×54; 437×34; 755×39; 817×23; 607×25; 969×38; 851×68; 408×50; 345×49; 297×99; 936×95.

Ответ:

  1. 27 × 23 = 621
  2. 67 × 53 = 3551
  3. 297 × 88 = 26136
  4. 531 × 64 = 33984
  5. 454 × 85 = 38590
  6. 348 × 67 = 23316
  7. 420 × 30 = 12600
  8. 809 × 73 = 59057
  9. 529 × 37 = 19573
  10. 150 × 83 = 12450
  11. 917 × 16 = 14672
  12. 624 × 86 = 53664
  13. 387 × 65 = 25155
  14. 539 × 54 = 29106
  15. 437 × 34 = 14858
  16. 755 × 39 = 29445
  17. 817 × 23 = 18791
  18. 607 × 25 = 15175
  19. 969 × 38 = 36822
  20. 851 × 68 = 57868
  21. 408 × 50 = 20400
  22. 345 × 49 = 16905
  23. 297 × 99 = 29403
  24. 936 × 95 = 88920