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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 839 · 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. 1.71³ =
  2. 2.55³ =
  3. 3.34³ =
  4. 4.29³ =
  5. 5.74³ =
  6. 6.23³ =
  7. 7.33³ =
  8. 8.81³ =
  9. 9.93³ =
  10. 10.72³ =
  11. 11.61³ =
  12. 12.55³ =
  13. 13.31³ =
  14. 14.61³ =
  15. 15.13³ =
  16. 16.53³ =
  17. 17.84³ =
  18. 18.36³ =
  19. 19.46³ =
  20. 20.74³ =
  21. 21.94³ =
  22. 22.22³ =
  23. 23.71³ =
  24. 24.47³ =
  25. 25.48³ =
  26. 26.18³ =
  27. 27.91³ =
  28. 28.77³ =
  29. 29.34³ =
  30. 30.53³ =
  31. 31.44³ =
  32. 32.49³ =
  33. 33.37³ =
  34. 34.63³ =
  35. 35.45³ =
  36. 36.19³ =
  37. 37.38³ =
  38. 38.18³ =
  39. 39.56³ =
  40. 40.46³ =

Answer key

  1. 357911
  2. 166375
  3. 39304
  4. 24389
  5. 405224
  6. 12167
  7. 35937
  8. 531441
  9. 804357
  10. 373248
  11. 226981
  12. 166375
  13. 29791
  14. 226981
  15. 2197
  16. 148877
  17. 592704
  18. 46656
  19. 97336
  20. 405224
  21. 830584
  22. 10648
  23. 357911
  24. 103823
  25. 110592
  26. 5832
  27. 753571
  28. 456533
  29. 39304
  30. 148877
  31. 85184
  32. 117649
  33. 50653
  34. 250047
  35. 91125
  36. 6859
  37. 54872
  38. 5832
  39. 175616
  40. 97336

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