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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 418 · 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. 1.15³ =
  2. 2.41³ =
  3. 3.71³ =
  4. 4.52³ =
  5. 5.37³ =
  6. 6.22³ =
  7. 7.97³ =
  8. 8.25³ =
  9. 9.91³ =
  10. 10.92³ =
  11. 11.93³ =
  12. 12.21³ =
  13. 13.58³ =
  14. 14.43³ =
  15. 15.61³ =
  16. 16.32³ =
  17. 17.93³ =
  18. 18.91³ =
  19. 19.91³ =
  20. 20.99³ =
  21. 21.18³ =
  22. 22.18³ =
  23. 23.95³ =
  24. 24.37³ =
  25. 25.82³ =
  26. 26.86³ =
  27. 27.42³ =
  28. 28.52³ =
  29. 29.14³ =
  30. 30.36³ =
  31. 31.68³ =
  32. 32.86³ =
  33. 33.82³ =
  34. 34.38³ =
  35. 35.81³ =
  36. 36.79³ =
  37. 37.71³ =
  38. 38.94³ =
  39. 39.91³ =
  40. 40.56³ =

Answer key

  1. 3375
  2. 68921
  3. 357911
  4. 140608
  5. 50653
  6. 10648
  7. 912673
  8. 15625
  9. 753571
  10. 778688
  11. 804357
  12. 9261
  13. 195112
  14. 79507
  15. 226981
  16. 32768
  17. 804357
  18. 753571
  19. 753571
  20. 970299
  21. 5832
  22. 5832
  23. 857375
  24. 50653
  25. 551368
  26. 636056
  27. 74088
  28. 140608
  29. 2744
  30. 46656
  31. 314432
  32. 636056
  33. 551368
  34. 54872
  35. 531441
  36. 493039
  37. 357911
  38. 830584
  39. 753571
  40. 175616

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