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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 77 · 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. 2.22³ =
  3. 3.61³ =
  4. 4.66³ =
  5. 5.53³ =
  6. 6.62³ =
  7. 7.49³ =
  8. 8.91³ =
  9. 9.84³ =
  10. 10.11³ =
  11. 11.21³ =
  12. 12.66³ =
  13. 13.51³ =
  14. 14.96³ =
  15. 15.46³ =
  16. 16.61³ =
  17. 17.48³ =
  18. 18.31³ =
  19. 19.16³ =
  20. 20.92³ =
  21. 21.61³ =
  22. 22.21³ =
  23. 23.23³ =
  24. 24.65³ =
  25. 25.38³ =
  26. 26.81³ =
  27. 27.83³ =
  28. 28.39³ =
  29. 29.99³ =
  30. 30.88³ =
  31. 31.79³ =
  32. 32.43³ =
  33. 33.81³ =
  34. 34.61³ =
  35. 35.46³ =
  36. 36.61³ =
  37. 37.84³ =
  38. 38.61³ =
  39. 39.71³ =
  40. 40.39³ =

Answer key

  1. 753571
  2. 10648
  3. 226981
  4. 287496
  5. 148877
  6. 238328
  7. 117649
  8. 753571
  9. 592704
  10. 1331
  11. 9261
  12. 287496
  13. 132651
  14. 884736
  15. 97336
  16. 226981
  17. 110592
  18. 29791
  19. 4096
  20. 778688
  21. 226981
  22. 9261
  23. 12167
  24. 274625
  25. 54872
  26. 531441
  27. 571787
  28. 59319
  29. 970299
  30. 681472
  31. 493039
  32. 79507
  33. 531441
  34. 226981
  35. 97336
  36. 226981
  37. 592704
  38. 226981
  39. 357911
  40. 59319

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