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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 304 · 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. 1.92³ =
  2. 2.39³ =
  3. 3.55³ =
  4. 4.42³ =
  5. 5.31³ =
  6. 6.93³ =
  7. 7.89³ =
  8. 8.61³ =
  9. 9.51³ =
  10. 10.41³ =
  11. 11.87³ =
  12. 12.95³ =
  13. 13.43³ =
  14. 14.64³ =
  15. 15.27³ =
  16. 16.21³ =
  17. 17.41³ =
  18. 18.83³ =
  19. 19.56³ =
  20. 20.48³ =
  21. 21.49³ =
  22. 22.18³ =
  23. 23.21³ =
  24. 24.19³ =
  25. 25.31³ =
  26. 26.61³ =
  27. 27.26³ =
  28. 28.81³ =
  29. 29.18³ =
  30. 30.25³ =
  31. 31.86³ =
  32. 32.69³ =
  33. 33.64³ =
  34. 34.26³ =
  35. 35.41³ =
  36. 36.69³ =
  37. 37.82³ =
  38. 38.93³ =
  39. 39.87³ =
  40. 40.19³ =

Answer key

  1. 778688
  2. 59319
  3. 166375
  4. 74088
  5. 29791
  6. 804357
  7. 704969
  8. 226981
  9. 132651
  10. 68921
  11. 658503
  12. 857375
  13. 79507
  14. 262144
  15. 19683
  16. 9261
  17. 68921
  18. 571787
  19. 175616
  20. 110592
  21. 117649
  22. 5832
  23. 9261
  24. 6859
  25. 29791
  26. 226981
  27. 17576
  28. 531441
  29. 5832
  30. 15625
  31. 636056
  32. 328509
  33. 262144
  34. 17576
  35. 68921
  36. 328509
  37. 551368
  38. 804357
  39. 658503
  40. 6859

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