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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 913 · 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. 1.41³ =
  2. 2.86³ =
  3. 3.95³ =
  4. 4.49³ =
  5. 5.84³ =
  6. 6.34³ =
  7. 7.54³ =
  8. 8.41³ =
  9. 9.53³ =
  10. 10.31³ =
  11. 11.23³ =
  12. 12.48³ =
  13. 13.22³ =
  14. 14.12³ =
  15. 15.21³ =
  16. 16.33³ =
  17. 17.81³ =
  18. 18.83³ =
  19. 19.48³ =
  20. 20.61³ =
  21. 21.77³ =
  22. 22.32³ =
  23. 23.43³ =
  24. 24.89³ =
  25. 25.87³ =
  26. 26.24³ =
  27. 27.39³ =
  28. 28.65³ =
  29. 29.15³ =
  30. 30.76³ =
  31. 31.82³ =
  32. 32.55³ =
  33. 33.37³ =
  34. 34.55³ =
  35. 35.78³ =
  36. 36.12³ =
  37. 37.31³ =
  38. 38.71³ =
  39. 39.61³ =
  40. 40.74³ =

Answer key

  1. 68921
  2. 636056
  3. 857375
  4. 117649
  5. 592704
  6. 39304
  7. 157464
  8. 68921
  9. 148877
  10. 29791
  11. 12167
  12. 110592
  13. 10648
  14. 1728
  15. 9261
  16. 35937
  17. 531441
  18. 571787
  19. 110592
  20. 226981
  21. 456533
  22. 32768
  23. 79507
  24. 704969
  25. 658503
  26. 13824
  27. 59319
  28. 274625
  29. 3375
  30. 438976
  31. 551368
  32. 166375
  33. 50653
  34. 166375
  35. 474552
  36. 1728
  37. 29791
  38. 357911
  39. 226981
  40. 405224

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