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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 185 · 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. 1.82³ =
  2. 2.11³ =
  3. 3.93³ =
  4. 4.76³ =
  5. 5.51³ =
  6. 6.81³ =
  7. 7.32³ =
  8. 8.86³ =
  9. 9.51³ =
  10. 10.46³ =
  11. 11.74³ =
  12. 12.44³ =
  13. 13.71³ =
  14. 14.55³ =
  15. 15.29³ =
  16. 16.68³ =
  17. 17.91³ =
  18. 18.52³ =
  19. 19.98³ =
  20. 20.71³ =
  21. 21.34³ =
  22. 22.57³ =
  23. 23.59³ =
  24. 24.98³ =
  25. 25.81³ =
  26. 26.85³ =
  27. 27.18³ =
  28. 28.12³ =
  29. 29.49³ =
  30. 30.37³ =
  31. 31.18³ =
  32. 32.14³ =
  33. 33.93³ =
  34. 34.86³ =
  35. 35.47³ =
  36. 36.23³ =
  37. 37.86³ =
  38. 38.52³ =
  39. 39.27³ =
  40. 40.71³ =

Answer key

  1. 551368
  2. 1331
  3. 804357
  4. 438976
  5. 132651
  6. 531441
  7. 32768
  8. 636056
  9. 132651
  10. 97336
  11. 405224
  12. 85184
  13. 357911
  14. 166375
  15. 24389
  16. 314432
  17. 753571
  18. 140608
  19. 941192
  20. 357911
  21. 39304
  22. 185193
  23. 205379
  24. 941192
  25. 531441
  26. 614125
  27. 5832
  28. 1728
  29. 117649
  30. 50653
  31. 5832
  32. 2744
  33. 804357
  34. 636056
  35. 103823
  36. 12167
  37. 636056
  38. 140608
  39. 19683
  40. 357911

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