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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 880 · 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. 1.17³ =
  2. 2.89³ =
  3. 3.62³ =
  4. 4.39³ =
  5. 5.39³ =
  6. 6.69³ =
  7. 7.94³ =
  8. 8.54³ =
  9. 9.11³ =
  10. 10.18³ =
  11. 11.94³ =
  12. 12.15³ =
  13. 13.41³ =
  14. 14.46³ =
  15. 15.95³ =
  16. 16.44³ =
  17. 17.61³ =
  18. 18.16³ =
  19. 19.82³ =
  20. 20.61³ =
  21. 21.51³ =
  22. 22.12³ =
  23. 23.66³ =
  24. 24.21³ =
  25. 25.64³ =
  26. 26.12³ =
  27. 27.34³ =
  28. 28.78³ =
  29. 29.61³ =
  30. 30.71³ =
  31. 31.91³ =
  32. 32.49³ =
  33. 33.37³ =
  34. 34.63³ =
  35. 35.23³ =
  36. 36.63³ =
  37. 37.75³ =
  38. 38.56³ =
  39. 39.82³ =
  40. 40.37³ =

Answer key

  1. 4913
  2. 704969
  3. 238328
  4. 59319
  5. 59319
  6. 328509
  7. 830584
  8. 157464
  9. 1331
  10. 5832
  11. 830584
  12. 3375
  13. 68921
  14. 97336
  15. 857375
  16. 85184
  17. 226981
  18. 4096
  19. 551368
  20. 226981
  21. 132651
  22. 1728
  23. 287496
  24. 9261
  25. 262144
  26. 1728
  27. 39304
  28. 474552
  29. 226981
  30. 357911
  31. 753571
  32. 117649
  33. 50653
  34. 250047
  35. 12167
  36. 250047
  37. 421875
  38. 175616
  39. 551368
  40. 50653

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