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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 595 · 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. 2.49³ =
  3. 3.44³ =
  4. 4.37³ =
  5. 5.95³ =
  6. 6.89³ =
  7. 7.86³ =
  8. 8.29³ =
  9. 9.91³ =
  10. 10.71³ =
  11. 11.18³ =
  12. 12.31³ =
  13. 13.71³ =
  14. 14.91³ =
  15. 15.84³ =
  16. 16.11³ =
  17. 17.73³ =
  18. 18.87³ =
  19. 19.47³ =
  20. 20.36³ =
  21. 21.71³ =
  22. 22.33³ =
  23. 23.97³ =
  24. 24.21³ =
  25. 25.99³ =
  26. 26.96³ =
  27. 27.32³ =
  28. 28.71³ =
  29. 29.14³ =
  30. 30.86³ =
  31. 31.19³ =
  32. 32.81³ =
  33. 33.12³ =
  34. 34.68³ =
  35. 35.27³ =
  36. 36.29³ =
  37. 37.18³ =
  38. 38.17³ =
  39. 39.53³ =
  40. 40.79³ =

Answer key

  1. 753571
  2. 117649
  3. 85184
  4. 50653
  5. 857375
  6. 704969
  7. 636056
  8. 24389
  9. 753571
  10. 357911
  11. 5832
  12. 29791
  13. 357911
  14. 753571
  15. 592704
  16. 1331
  17. 389017
  18. 658503
  19. 103823
  20. 46656
  21. 357911
  22. 35937
  23. 912673
  24. 9261
  25. 970299
  26. 884736
  27. 32768
  28. 357911
  29. 2744
  30. 636056
  31. 6859
  32. 531441
  33. 1728
  34. 314432
  35. 19683
  36. 24389
  37. 5832
  38. 4913
  39. 148877
  40. 493039

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