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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 68 · 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. 1.89³ =
  2. 2.18³ =
  3. 3.49³ =
  4. 4.74³ =
  5. 5.86³ =
  6. 6.46³ =
  7. 7.51³ =
  8. 8.64³ =
  9. 9.93³ =
  10. 10.23³ =
  11. 11.77³ =
  12. 12.63³ =
  13. 13.76³ =
  14. 14.34³ =
  15. 15.23³ =
  16. 16.51³ =
  17. 17.68³ =
  18. 18.55³ =
  19. 19.64³ =
  20. 20.71³ =
  21. 21.51³ =
  22. 22.28³ =
  23. 23.91³ =
  24. 24.32³ =
  25. 25.36³ =
  26. 26.33³ =
  27. 27.77³ =
  28. 28.59³ =
  29. 29.19³ =
  30. 30.84³ =
  31. 31.37³ =
  32. 32.31³ =
  33. 33.42³ =
  34. 34.17³ =
  35. 35.46³ =
  36. 36.36³ =
  37. 37.64³ =
  38. 38.89³ =
  39. 39.29³ =
  40. 40.47³ =

Answer key

  1. 704969
  2. 5832
  3. 117649
  4. 405224
  5. 636056
  6. 97336
  7. 132651
  8. 262144
  9. 804357
  10. 12167
  11. 456533
  12. 250047
  13. 438976
  14. 39304
  15. 12167
  16. 132651
  17. 314432
  18. 166375
  19. 262144
  20. 357911
  21. 132651
  22. 21952
  23. 753571
  24. 32768
  25. 46656
  26. 35937
  27. 456533
  28. 205379
  29. 6859
  30. 592704
  31. 50653
  32. 29791
  33. 74088
  34. 4913
  35. 97336
  36. 46656
  37. 262144
  38. 704969
  39. 24389
  40. 103823

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