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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 85 · 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. 1.91³ =
  2. 2.56³ =
  3. 3.63³ =
  4. 4.21³ =
  5. 5.13³ =
  6. 6.47³ =
  7. 7.99³ =
  8. 8.56³ =
  9. 9.63³ =
  10. 10.56³ =
  11. 11.51³ =
  12. 12.58³ =
  13. 13.93³ =
  14. 14.58³ =
  15. 15.38³ =
  16. 16.65³ =
  17. 17.92³ =
  18. 18.71³ =
  19. 19.31³ =
  20. 20.14³ =
  21. 21.23³ =
  22. 22.51³ =
  23. 23.61³ =
  24. 24.21³ =
  25. 25.31³ =
  26. 26.94³ =
  27. 27.46³ =
  28. 28.13³ =
  29. 29.56³ =
  30. 30.45³ =
  31. 31.94³ =
  32. 32.21³ =
  33. 33.93³ =
  34. 34.21³ =
  35. 35.35³ =
  36. 36.14³ =
  37. 37.12³ =
  38. 38.82³ =
  39. 39.39³ =
  40. 40.86³ =

Answer key

  1. 753571
  2. 175616
  3. 250047
  4. 9261
  5. 2197
  6. 103823
  7. 970299
  8. 175616
  9. 250047
  10. 175616
  11. 132651
  12. 195112
  13. 804357
  14. 195112
  15. 54872
  16. 274625
  17. 778688
  18. 357911
  19. 29791
  20. 2744
  21. 12167
  22. 132651
  23. 226981
  24. 9261
  25. 29791
  26. 830584
  27. 97336
  28. 2197
  29. 175616
  30. 91125
  31. 830584
  32. 9261
  33. 804357
  34. 9261
  35. 42875
  36. 2744
  37. 1728
  38. 551368
  39. 59319
  40. 636056

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