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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 822 · 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. 1.46³ =
  2. 2.21³ =
  3. 3.94³ =
  4. 4.37³ =
  5. 5.83³ =
  6. 6.14³ =
  7. 7.53³ =
  8. 8.34³ =
  9. 9.29³ =
  10. 10.71³ =
  11. 11.11³ =
  12. 12.93³ =
  13. 13.89³ =
  14. 14.71³ =
  15. 15.79³ =
  16. 16.51³ =
  17. 17.85³ =
  18. 18.31³ =
  19. 19.52³ =
  20. 20.12³ =
  21. 21.19³ =
  22. 22.47³ =
  23. 23.37³ =
  24. 24.54³ =
  25. 25.11³ =
  26. 26.24³ =
  27. 27.42³ =
  28. 28.31³ =
  29. 29.46³ =
  30. 30.41³ =
  31. 31.51³ =
  32. 32.19³ =
  33. 33.13³ =
  34. 34.94³ =
  35. 35.42³ =
  36. 36.64³ =
  37. 37.89³ =
  38. 38.98³ =
  39. 39.44³ =
  40. 40.59³ =

Answer key

  1. 97336
  2. 9261
  3. 830584
  4. 50653
  5. 571787
  6. 2744
  7. 148877
  8. 39304
  9. 24389
  10. 357911
  11. 1331
  12. 804357
  13. 704969
  14. 357911
  15. 493039
  16. 132651
  17. 614125
  18. 29791
  19. 140608
  20. 1728
  21. 6859
  22. 103823
  23. 50653
  24. 157464
  25. 1331
  26. 13824
  27. 74088
  28. 29791
  29. 97336
  30. 68921
  31. 132651
  32. 6859
  33. 2197
  34. 830584
  35. 74088
  36. 262144
  37. 704969
  38. 941192
  39. 85184
  40. 205379

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