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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 810 · 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. 1.61³ =
  2. 2.79³ =
  3. 3.57³ =
  4. 4.26³ =
  5. 5.12³ =
  6. 6.34³ =
  7. 7.85³ =
  8. 8.56³ =
  9. 9.19³ =
  10. 10.38³ =
  11. 11.23³ =
  12. 12.91³ =
  13. 13.31³ =
  14. 14.22³ =
  15. 15.99³ =
  16. 16.76³ =
  17. 17.31³ =
  18. 18.77³ =
  19. 19.59³ =
  20. 20.21³ =
  21. 21.49³ =
  22. 22.88³ =
  23. 23.18³ =
  24. 24.67³ =
  25. 25.62³ =
  26. 26.82³ =
  27. 27.13³ =
  28. 28.46³ =
  29. 29.36³ =
  30. 30.31³ =
  31. 31.98³ =
  32. 32.69³ =
  33. 33.18³ =
  34. 34.93³ =
  35. 35.71³ =
  36. 36.69³ =
  37. 37.94³ =
  38. 38.33³ =
  39. 39.39³ =
  40. 40.38³ =

Answer key

  1. 226981
  2. 493039
  3. 185193
  4. 17576
  5. 1728
  6. 39304
  7. 614125
  8. 175616
  9. 6859
  10. 54872
  11. 12167
  12. 753571
  13. 29791
  14. 10648
  15. 970299
  16. 438976
  17. 29791
  18. 456533
  19. 205379
  20. 9261
  21. 117649
  22. 681472
  23. 5832
  24. 300763
  25. 238328
  26. 551368
  27. 2197
  28. 97336
  29. 46656
  30. 29791
  31. 941192
  32. 328509
  33. 5832
  34. 804357
  35. 357911
  36. 328509
  37. 830584
  38. 35937
  39. 59319
  40. 54872

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