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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 512 · 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. 2.92³ =
  3. 3.86³ =
  4. 4.15³ =
  5. 5.14³ =
  6. 6.86³ =
  7. 7.49³ =
  8. 8.31³ =
  9. 9.93³ =
  10. 10.46³ =
  11. 11.59³ =
  12. 12.51³ =
  13. 13.46³ =
  14. 14.22³ =
  15. 15.27³ =
  16. 16.85³ =
  17. 17.12³ =
  18. 18.56³ =
  19. 19.93³ =
  20. 20.97³ =
  21. 21.22³ =
  22. 22.97³ =
  23. 23.88³ =
  24. 24.94³ =
  25. 25.91³ =
  26. 26.45³ =
  27. 27.86³ =
  28. 28.69³ =
  29. 29.93³ =
  30. 30.47³ =
  31. 31.14³ =
  32. 32.45³ =
  33. 33.73³ =
  34. 34.45³ =
  35. 35.38³ =
  36. 36.21³ =
  37. 37.69³ =
  38. 38.13³ =
  39. 39.31³ =
  40. 40.63³ =

Answer key

  1. 5832
  2. 778688
  3. 636056
  4. 3375
  5. 2744
  6. 636056
  7. 117649
  8. 29791
  9. 804357
  10. 97336
  11. 205379
  12. 132651
  13. 97336
  14. 10648
  15. 19683
  16. 614125
  17. 1728
  18. 175616
  19. 804357
  20. 912673
  21. 10648
  22. 912673
  23. 681472
  24. 830584
  25. 753571
  26. 91125
  27. 636056
  28. 328509
  29. 804357
  30. 103823
  31. 2744
  32. 91125
  33. 389017
  34. 91125
  35. 54872
  36. 9261
  37. 328509
  38. 2197
  39. 29791
  40. 250047

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