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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 16 · 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. 1.25³ =
  2. 2.52³ =
  3. 3.71³ =
  4. 4.81³ =
  5. 5.99³ =
  6. 6.23³ =
  7. 7.43³ =
  8. 8.93³ =
  9. 9.31³ =
  10. 10.98³ =
  11. 11.96³ =
  12. 12.37³ =
  13. 13.96³ =
  14. 14.65³ =
  15. 15.96³ =
  16. 16.61³ =
  17. 17.58³ =
  18. 18.84³ =
  19. 19.28³ =
  20. 20.77³ =
  21. 21.69³ =
  22. 22.65³ =
  23. 23.85³ =
  24. 24.66³ =
  25. 25.82³ =
  26. 26.52³ =
  27. 27.89³ =
  28. 28.26³ =
  29. 29.39³ =
  30. 30.69³ =
  31. 31.81³ =
  32. 32.71³ =
  33. 33.21³ =
  34. 34.31³ =
  35. 35.21³ =
  36. 36.71³ =
  37. 37.43³ =
  38. 38.57³ =
  39. 39.17³ =
  40. 40.56³ =

Answer key

  1. 15625
  2. 140608
  3. 357911
  4. 531441
  5. 970299
  6. 12167
  7. 79507
  8. 804357
  9. 29791
  10. 941192
  11. 884736
  12. 50653
  13. 884736
  14. 274625
  15. 884736
  16. 226981
  17. 195112
  18. 592704
  19. 21952
  20. 456533
  21. 328509
  22. 274625
  23. 614125
  24. 287496
  25. 551368
  26. 140608
  27. 704969
  28. 17576
  29. 59319
  30. 328509
  31. 531441
  32. 357911
  33. 9261
  34. 29791
  35. 9261
  36. 357911
  37. 79507
  38. 185193
  39. 4913
  40. 175616

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