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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 129 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.85³ =
  2. 2.68³ =
  3. 3.81³ =
  4. 4.78³ =
  5. 5.61³ =
  6. 6.39³ =
  7. 7.11³ =
  8. 8.12³ =
  9. 9.68³ =
  10. 10.15³ =
  11. 11.14³ =
  12. 12.95³ =
  13. 13.31³ =
  14. 14.31³ =
  15. 15.35³ =
  16. 16.37³ =
  17. 17.61³ =
  18. 18.29³ =
  19. 19.48³ =
  20. 20.72³ =
  21. 21.38³ =
  22. 22.86³ =
  23. 23.91³ =
  24. 24.58³ =
  25. 25.77³ =
  26. 26.36³ =
  27. 27.51³ =
  28. 28.91³ =
  29. 29.83³ =
  30. 30.94³ =
  31. 31.16³ =
  32. 32.68³ =
  33. 33.69³ =
  34. 34.55³ =
  35. 35.29³ =
  36. 36.36³ =
  37. 37.14³ =
  38. 38.69³ =
  39. 39.87³ =
  40. 40.53³ =

Answer key

  1. 614125
  2. 314432
  3. 531441
  4. 474552
  5. 226981
  6. 59319
  7. 1331
  8. 1728
  9. 314432
  10. 3375
  11. 2744
  12. 857375
  13. 29791
  14. 29791
  15. 42875
  16. 50653
  17. 226981
  18. 24389
  19. 110592
  20. 373248
  21. 54872
  22. 636056
  23. 753571
  24. 195112
  25. 456533
  26. 46656
  27. 132651
  28. 753571
  29. 571787
  30. 830584
  31. 4096
  32. 314432
  33. 328509
  34. 166375
  35. 24389
  36. 46656
  37. 2744
  38. 328509
  39. 658503
  40. 148877

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