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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 364 · 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. 1.58³ =
  2. 2.64³ =
  3. 3.38³ =
  4. 4.27³ =
  5. 5.28³ =
  6. 6.59³ =
  7. 7.84³ =
  8. 8.24³ =
  9. 9.41³ =
  10. 10.29³ =
  11. 11.89³ =
  12. 12.91³ =
  13. 13.81³ =
  14. 14.61³ =
  15. 15.51³ =
  16. 16.26³ =
  17. 17.52³ =
  18. 18.84³ =
  19. 19.71³ =
  20. 20.18³ =
  21. 21.71³ =
  22. 22.47³ =
  23. 23.61³ =
  24. 24.64³ =
  25. 25.81³ =
  26. 26.46³ =
  27. 27.28³ =
  28. 28.39³ =
  29. 29.29³ =
  30. 30.79³ =
  31. 31.22³ =
  32. 32.13³ =
  33. 33.44³ =
  34. 34.34³ =
  35. 35.29³ =
  36. 36.92³ =
  37. 37.81³ =
  38. 38.48³ =
  39. 39.83³ =
  40. 40.31³ =

Answer key

  1. 195112
  2. 262144
  3. 54872
  4. 19683
  5. 21952
  6. 205379
  7. 592704
  8. 13824
  9. 68921
  10. 24389
  11. 704969
  12. 753571
  13. 531441
  14. 226981
  15. 132651
  16. 17576
  17. 140608
  18. 592704
  19. 357911
  20. 5832
  21. 357911
  22. 103823
  23. 226981
  24. 262144
  25. 531441
  26. 97336
  27. 21952
  28. 59319
  29. 24389
  30. 493039
  31. 10648
  32. 2197
  33. 85184
  34. 39304
  35. 24389
  36. 778688
  37. 531441
  38. 110592
  39. 571787
  40. 29791

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