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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 124 · 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. 1.18³ =
  2. 2.77³ =
  3. 3.94³ =
  4. 4.94³ =
  5. 5.23³ =
  6. 6.64³ =
  7. 7.86³ =
  8. 8.83³ =
  9. 9.83³ =
  10. 10.77³ =
  11. 11.84³ =
  12. 12.89³ =
  13. 13.49³ =
  14. 14.52³ =
  15. 15.45³ =
  16. 16.46³ =
  17. 17.21³ =
  18. 18.67³ =
  19. 19.32³ =
  20. 20.57³ =
  21. 21.21³ =
  22. 22.31³ =
  23. 23.42³ =
  24. 24.89³ =
  25. 25.51³ =
  26. 26.38³ =
  27. 27.82³ =
  28. 28.32³ =
  29. 29.59³ =
  30. 30.12³ =
  31. 31.31³ =
  32. 32.71³ =
  33. 33.86³ =
  34. 34.87³ =
  35. 35.25³ =
  36. 36.74³ =
  37. 37.54³ =
  38. 38.31³ =
  39. 39.94³ =
  40. 40.13³ =

Answer key

  1. 5832
  2. 456533
  3. 830584
  4. 830584
  5. 12167
  6. 262144
  7. 636056
  8. 571787
  9. 571787
  10. 456533
  11. 592704
  12. 704969
  13. 117649
  14. 140608
  15. 91125
  16. 97336
  17. 9261
  18. 300763
  19. 32768
  20. 185193
  21. 9261
  22. 29791
  23. 74088
  24. 704969
  25. 132651
  26. 54872
  27. 551368
  28. 32768
  29. 205379
  30. 1728
  31. 29791
  32. 357911
  33. 636056
  34. 658503
  35. 15625
  36. 405224
  37. 157464
  38. 29791
  39. 830584
  40. 2197

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