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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 414 · 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. 1.15³ =
  2. 2.57³ =
  3. 3.13³ =
  4. 4.23³ =
  5. 5.43³ =
  6. 6.18³ =
  7. 7.31³ =
  8. 8.38³ =
  9. 9.89³ =
  10. 10.54³ =
  11. 11.66³ =
  12. 12.78³ =
  13. 13.13³ =
  14. 14.59³ =
  15. 15.12³ =
  16. 16.44³ =
  17. 17.21³ =
  18. 18.36³ =
  19. 19.11³ =
  20. 20.11³ =
  21. 21.27³ =
  22. 22.22³ =
  23. 23.14³ =
  24. 24.41³ =
  25. 25.86³ =
  26. 26.13³ =
  27. 27.36³ =
  28. 28.91³ =
  29. 29.48³ =
  30. 30.85³ =
  31. 31.59³ =
  32. 32.81³ =
  33. 33.61³ =
  34. 34.21³ =
  35. 35.83³ =
  36. 36.12³ =
  37. 37.36³ =
  38. 38.82³ =
  39. 39.85³ =
  40. 40.77³ =

Answer key

  1. 3375
  2. 185193
  3. 2197
  4. 12167
  5. 79507
  6. 5832
  7. 29791
  8. 54872
  9. 704969
  10. 157464
  11. 287496
  12. 474552
  13. 2197
  14. 205379
  15. 1728
  16. 85184
  17. 9261
  18. 46656
  19. 1331
  20. 1331
  21. 19683
  22. 10648
  23. 2744
  24. 68921
  25. 636056
  26. 2197
  27. 46656
  28. 753571
  29. 110592
  30. 614125
  31. 205379
  32. 531441
  33. 226981
  34. 9261
  35. 571787
  36. 1728
  37. 46656
  38. 551368
  39. 614125
  40. 456533

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