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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 1 · 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. 1.63³ =
  2. 2.82³ =
  3. 3.61³ =
  4. 4.29³ =
  5. 5.19³ =
  6. 6.49³ =
  7. 7.85³ =
  8. 8.61³ =
  9. 9.25³ =
  10. 10.81³ =
  11. 11.96³ =
  12. 12.73³ =
  13. 13.61³ =
  14. 14.64³ =
  15. 15.62³ =
  16. 16.31³ =
  17. 17.14³ =
  18. 18.76³ =
  19. 19.85³ =
  20. 20.69³ =
  21. 21.91³ =
  22. 22.49³ =
  23. 23.12³ =
  24. 24.73³ =
  25. 25.33³ =
  26. 26.69³ =
  27. 27.22³ =
  28. 28.91³ =
  29. 29.39³ =
  30. 30.81³ =
  31. 31.39³ =
  32. 32.21³ =
  33. 33.71³ =
  34. 34.96³ =
  35. 35.89³ =
  36. 36.47³ =
  37. 37.16³ =
  38. 38.84³ =
  39. 39.31³ =
  40. 40.31³ =

Answer key

  1. 250047
  2. 551368
  3. 226981
  4. 24389
  5. 6859
  6. 117649
  7. 614125
  8. 226981
  9. 15625
  10. 531441
  11. 884736
  12. 389017
  13. 226981
  14. 262144
  15. 238328
  16. 29791
  17. 2744
  18. 438976
  19. 614125
  20. 328509
  21. 753571
  22. 117649
  23. 1728
  24. 389017
  25. 35937
  26. 328509
  27. 10648
  28. 753571
  29. 59319
  30. 531441
  31. 59319
  32. 9261
  33. 357911
  34. 884736
  35. 704969
  36. 103823
  37. 4096
  38. 592704
  39. 29791
  40. 29791

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