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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 35 · 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. 1.81³ =
  2. 2.41³ =
  3. 3.36³ =
  4. 4.41³ =
  5. 5.96³ =
  6. 6.84³ =
  7. 7.85³ =
  8. 8.34³ =
  9. 9.66³ =
  10. 10.32³ =
  11. 11.23³ =
  12. 12.14³ =
  13. 13.28³ =
  14. 14.21³ =
  15. 15.84³ =
  16. 16.31³ =
  17. 17.51³ =
  18. 18.43³ =
  19. 19.28³ =
  20. 20.26³ =
  21. 21.93³ =
  22. 22.22³ =
  23. 23.95³ =
  24. 24.27³ =
  25. 25.35³ =
  26. 26.15³ =
  27. 27.56³ =
  28. 28.39³ =
  29. 29.47³ =
  30. 30.14³ =
  31. 31.85³ =
  32. 32.18³ =
  33. 33.21³ =
  34. 34.96³ =
  35. 35.43³ =
  36. 36.25³ =
  37. 37.71³ =
  38. 38.19³ =
  39. 39.81³ =
  40. 40.56³ =

Answer key

  1. 531441
  2. 68921
  3. 46656
  4. 68921
  5. 884736
  6. 592704
  7. 614125
  8. 39304
  9. 287496
  10. 32768
  11. 12167
  12. 2744
  13. 21952
  14. 9261
  15. 592704
  16. 29791
  17. 132651
  18. 79507
  19. 21952
  20. 17576
  21. 804357
  22. 10648
  23. 857375
  24. 19683
  25. 42875
  26. 3375
  27. 175616
  28. 59319
  29. 103823
  30. 2744
  31. 614125
  32. 5832
  33. 9261
  34. 884736
  35. 79507
  36. 15625
  37. 357911
  38. 6859
  39. 531441
  40. 175616

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