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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 403 · 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. 1.32³ =
  2. 2.27³ =
  3. 3.49³ =
  4. 4.21³ =
  5. 5.17³ =
  6. 6.69³ =
  7. 7.81³ =
  8. 8.53³ =
  9. 9.23³ =
  10. 10.53³ =
  11. 11.94³ =
  12. 12.53³ =
  13. 13.12³ =
  14. 14.33³ =
  15. 15.15³ =
  16. 16.63³ =
  17. 17.71³ =
  18. 18.19³ =
  19. 19.11³ =
  20. 20.19³ =
  21. 21.77³ =
  22. 22.74³ =
  23. 23.84³ =
  24. 24.94³ =
  25. 25.59³ =
  26. 26.91³ =
  27. 27.74³ =
  28. 28.15³ =
  29. 29.31³ =
  30. 30.17³ =
  31. 31.91³ =
  32. 32.46³ =
  33. 33.85³ =
  34. 34.61³ =
  35. 35.27³ =
  36. 36.65³ =
  37. 37.95³ =
  38. 38.16³ =
  39. 39.13³ =
  40. 40.19³ =

Answer key

  1. 32768
  2. 19683
  3. 117649
  4. 9261
  5. 4913
  6. 328509
  7. 531441
  8. 148877
  9. 12167
  10. 148877
  11. 830584
  12. 148877
  13. 1728
  14. 35937
  15. 3375
  16. 250047
  17. 357911
  18. 6859
  19. 1331
  20. 6859
  21. 456533
  22. 405224
  23. 592704
  24. 830584
  25. 205379
  26. 753571
  27. 405224
  28. 3375
  29. 29791
  30. 4913
  31. 753571
  32. 97336
  33. 614125
  34. 226981
  35. 19683
  36. 274625
  37. 857375
  38. 4096
  39. 2197
  40. 6859

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