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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 825 · 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. 1.62³ =
  2. 2.89³ =
  3. 3.54³ =
  4. 4.87³ =
  5. 5.77³ =
  6. 6.45³ =
  7. 7.19³ =
  8. 8.81³ =
  9. 9.14³ =
  10. 10.18³ =
  11. 11.63³ =
  12. 12.54³ =
  13. 13.12³ =
  14. 14.26³ =
  15. 15.59³ =
  16. 16.34³ =
  17. 17.29³ =
  18. 18.94³ =
  19. 19.41³ =
  20. 20.34³ =
  21. 21.92³ =
  22. 22.17³ =
  23. 23.42³ =
  24. 24.92³ =
  25. 25.55³ =
  26. 26.19³ =
  27. 27.99³ =
  28. 28.31³ =
  29. 29.18³ =
  30. 30.91³ =
  31. 31.34³ =
  32. 32.85³ =
  33. 33.89³ =
  34. 34.24³ =
  35. 35.39³ =
  36. 36.84³ =
  37. 37.97³ =
  38. 38.43³ =
  39. 39.79³ =
  40. 40.71³ =

Answer key

  1. 238328
  2. 704969
  3. 157464
  4. 658503
  5. 456533
  6. 91125
  7. 6859
  8. 531441
  9. 2744
  10. 5832
  11. 250047
  12. 157464
  13. 1728
  14. 17576
  15. 205379
  16. 39304
  17. 24389
  18. 830584
  19. 68921
  20. 39304
  21. 778688
  22. 4913
  23. 74088
  24. 778688
  25. 166375
  26. 6859
  27. 970299
  28. 29791
  29. 5832
  30. 753571
  31. 39304
  32. 614125
  33. 704969
  34. 13824
  35. 59319
  36. 592704
  37. 912673
  38. 79507
  39. 493039
  40. 357911

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