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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 596 · 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. 1.12³ =
  2. 2.37³ =
  3. 3.18³ =
  4. 4.81³ =
  5. 5.68³ =
  6. 6.46³ =
  7. 7.62³ =
  8. 8.71³ =
  9. 9.34³ =
  10. 10.61³ =
  11. 11.29³ =
  12. 12.46³ =
  13. 13.81³ =
  14. 14.61³ =
  15. 15.81³ =
  16. 16.22³ =
  17. 17.26³ =
  18. 18.39³ =
  19. 19.49³ =
  20. 20.25³ =
  21. 21.26³ =
  22. 22.52³ =
  23. 23.73³ =
  24. 24.46³ =
  25. 25.69³ =
  26. 26.16³ =
  27. 27.95³ =
  28. 28.22³ =
  29. 29.59³ =
  30. 30.97³ =
  31. 31.92³ =
  32. 32.28³ =
  33. 33.52³ =
  34. 34.83³ =
  35. 35.34³ =
  36. 36.37³ =
  37. 37.81³ =
  38. 38.16³ =
  39. 39.41³ =
  40. 40.16³ =

Answer key

  1. 1728
  2. 50653
  3. 5832
  4. 531441
  5. 314432
  6. 97336
  7. 238328
  8. 357911
  9. 39304
  10. 226981
  11. 24389
  12. 97336
  13. 531441
  14. 226981
  15. 531441
  16. 10648
  17. 17576
  18. 59319
  19. 117649
  20. 15625
  21. 17576
  22. 140608
  23. 389017
  24. 97336
  25. 328509
  26. 4096
  27. 857375
  28. 10648
  29. 205379
  30. 912673
  31. 778688
  32. 21952
  33. 140608
  34. 571787
  35. 39304
  36. 50653
  37. 531441
  38. 4096
  39. 68921
  40. 4096

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