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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 625 · 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. 1.74³ =
  2. 2.24³ =
  3. 3.76³ =
  4. 4.52³ =
  5. 5.23³ =
  6. 6.12³ =
  7. 7.91³ =
  8. 8.61³ =
  9. 9.39³ =
  10. 10.21³ =
  11. 11.34³ =
  12. 12.28³ =
  13. 13.37³ =
  14. 14.34³ =
  15. 15.37³ =
  16. 16.24³ =
  17. 17.43³ =
  18. 18.39³ =
  19. 19.23³ =
  20. 20.62³ =
  21. 21.66³ =
  22. 22.83³ =
  23. 23.29³ =
  24. 24.51³ =
  25. 25.69³ =
  26. 26.89³ =
  27. 27.31³ =
  28. 28.19³ =
  29. 29.32³ =
  30. 30.29³ =
  31. 31.86³ =
  32. 32.91³ =
  33. 33.93³ =
  34. 34.36³ =
  35. 35.97³ =
  36. 36.46³ =
  37. 37.13³ =
  38. 38.16³ =
  39. 39.75³ =
  40. 40.67³ =

Answer key

  1. 405224
  2. 13824
  3. 438976
  4. 140608
  5. 12167
  6. 1728
  7. 753571
  8. 226981
  9. 59319
  10. 9261
  11. 39304
  12. 21952
  13. 50653
  14. 39304
  15. 50653
  16. 13824
  17. 79507
  18. 59319
  19. 12167
  20. 238328
  21. 287496
  22. 571787
  23. 24389
  24. 132651
  25. 328509
  26. 704969
  27. 29791
  28. 6859
  29. 32768
  30. 24389
  31. 636056
  32. 753571
  33. 804357
  34. 46656
  35. 912673
  36. 97336
  37. 2197
  38. 4096
  39. 421875
  40. 300763

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