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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 714 · 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. 1.34³ =
  2. 2.26³ =
  3. 3.41³ =
  4. 4.81³ =
  5. 5.18³ =
  6. 6.66³ =
  7. 7.12³ =
  8. 8.51³ =
  9. 9.57³ =
  10. 10.48³ =
  11. 11.26³ =
  12. 12.28³ =
  13. 13.16³ =
  14. 14.64³ =
  15. 15.85³ =
  16. 16.99³ =
  17. 17.52³ =
  18. 18.81³ =
  19. 19.37³ =
  20. 20.15³ =
  21. 21.24³ =
  22. 22.21³ =
  23. 23.85³ =
  24. 24.86³ =
  25. 25.63³ =
  26. 26.31³ =
  27. 27.89³ =
  28. 28.21³ =
  29. 29.49³ =
  30. 30.66³ =
  31. 31.99³ =
  32. 32.14³ =
  33. 33.31³ =
  34. 34.61³ =
  35. 35.99³ =
  36. 36.14³ =
  37. 37.32³ =
  38. 38.24³ =
  39. 39.61³ =
  40. 40.31³ =

Answer key

  1. 39304
  2. 17576
  3. 68921
  4. 531441
  5. 5832
  6. 287496
  7. 1728
  8. 132651
  9. 185193
  10. 110592
  11. 17576
  12. 21952
  13. 4096
  14. 262144
  15. 614125
  16. 970299
  17. 140608
  18. 531441
  19. 50653
  20. 3375
  21. 13824
  22. 9261
  23. 614125
  24. 636056
  25. 250047
  26. 29791
  27. 704969
  28. 9261
  29. 117649
  30. 287496
  31. 970299
  32. 2744
  33. 29791
  34. 226981
  35. 970299
  36. 2744
  37. 32768
  38. 13824
  39. 226981
  40. 29791

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