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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 859 · 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. 1.24³ =
  2. 2.73³ =
  3. 3.44³ =
  4. 4.51³ =
  5. 5.87³ =
  6. 6.29³ =
  7. 7.73³ =
  8. 8.69³ =
  9. 9.32³ =
  10. 10.34³ =
  11. 11.62³ =
  12. 12.96³ =
  13. 13.75³ =
  14. 14.13³ =
  15. 15.12³ =
  16. 16.71³ =
  17. 17.62³ =
  18. 18.29³ =
  19. 19.18³ =
  20. 20.71³ =
  21. 21.95³ =
  22. 22.89³ =
  23. 23.21³ =
  24. 24.98³ =
  25. 25.18³ =
  26. 26.71³ =
  27. 27.37³ =
  28. 28.23³ =
  29. 29.11³ =
  30. 30.27³ =
  31. 31.18³ =
  32. 32.64³ =
  33. 33.43³ =
  34. 34.19³ =
  35. 35.38³ =
  36. 36.34³ =
  37. 37.44³ =
  38. 38.68³ =
  39. 39.24³ =
  40. 40.91³ =

Answer key

  1. 13824
  2. 389017
  3. 85184
  4. 132651
  5. 658503
  6. 24389
  7. 389017
  8. 328509
  9. 32768
  10. 39304
  11. 238328
  12. 884736
  13. 421875
  14. 2197
  15. 1728
  16. 357911
  17. 238328
  18. 24389
  19. 5832
  20. 357911
  21. 857375
  22. 704969
  23. 9261
  24. 941192
  25. 5832
  26. 357911
  27. 50653
  28. 12167
  29. 1331
  30. 19683
  31. 5832
  32. 262144
  33. 79507
  34. 6859
  35. 54872
  36. 39304
  37. 85184
  38. 314432
  39. 13824
  40. 753571

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