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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 371 · 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. 1.45³ =
  2. 2.43³ =
  3. 3.66³ =
  4. 4.55³ =
  5. 5.37³ =
  6. 6.76³ =
  7. 7.21³ =
  8. 8.38³ =
  9. 9.94³ =
  10. 10.55³ =
  11. 11.23³ =
  12. 12.64³ =
  13. 13.37³ =
  14. 14.89³ =
  15. 15.61³ =
  16. 16.67³ =
  17. 17.31³ =
  18. 18.93³ =
  19. 19.66³ =
  20. 20.12³ =
  21. 21.71³ =
  22. 22.85³ =
  23. 23.62³ =
  24. 24.77³ =
  25. 25.11³ =
  26. 26.35³ =
  27. 27.46³ =
  28. 28.31³ =
  29. 29.12³ =
  30. 30.71³ =
  31. 31.85³ =
  32. 32.89³ =
  33. 33.31³ =
  34. 34.81³ =
  35. 35.35³ =
  36. 36.23³ =
  37. 37.85³ =
  38. 38.26³ =
  39. 39.83³ =
  40. 40.93³ =

Answer key

  1. 91125
  2. 79507
  3. 287496
  4. 166375
  5. 50653
  6. 438976
  7. 9261
  8. 54872
  9. 830584
  10. 166375
  11. 12167
  12. 262144
  13. 50653
  14. 704969
  15. 226981
  16. 300763
  17. 29791
  18. 804357
  19. 287496
  20. 1728
  21. 357911
  22. 614125
  23. 238328
  24. 456533
  25. 1331
  26. 42875
  27. 97336
  28. 29791
  29. 1728
  30. 357911
  31. 614125
  32. 704969
  33. 29791
  34. 531441
  35. 42875
  36. 12167
  37. 614125
  38. 17576
  39. 571787
  40. 804357

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