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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 232 · 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. 1.83³ =
  2. 2.15³ =
  3. 3.89³ =
  4. 4.46³ =
  5. 5.15³ =
  6. 6.28³ =
  7. 7.78³ =
  8. 8.75³ =
  9. 9.57³ =
  10. 10.63³ =
  11. 11.92³ =
  12. 12.61³ =
  13. 13.69³ =
  14. 14.21³ =
  15. 15.64³ =
  16. 16.83³ =
  17. 17.21³ =
  18. 18.17³ =
  19. 19.88³ =
  20. 20.85³ =
  21. 21.34³ =
  22. 22.77³ =
  23. 23.21³ =
  24. 24.83³ =
  25. 25.85³ =
  26. 26.24³ =
  27. 27.34³ =
  28. 28.48³ =
  29. 29.93³ =
  30. 30.24³ =
  31. 31.15³ =
  32. 32.37³ =
  33. 33.31³ =
  34. 34.77³ =
  35. 35.48³ =
  36. 36.63³ =
  37. 37.68³ =
  38. 38.79³ =
  39. 39.47³ =
  40. 40.71³ =

Answer key

  1. 571787
  2. 3375
  3. 704969
  4. 97336
  5. 3375
  6. 21952
  7. 474552
  8. 421875
  9. 185193
  10. 250047
  11. 778688
  12. 226981
  13. 328509
  14. 9261
  15. 262144
  16. 571787
  17. 9261
  18. 4913
  19. 681472
  20. 614125
  21. 39304
  22. 456533
  23. 9261
  24. 571787
  25. 614125
  26. 13824
  27. 39304
  28. 110592
  29. 804357
  30. 13824
  31. 3375
  32. 50653
  33. 29791
  34. 456533
  35. 110592
  36. 250047
  37. 314432
  38. 493039
  39. 103823
  40. 357911

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