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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 535 · 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. 1.31³ =
  2. 2.66³ =
  3. 3.49³ =
  4. 4.27³ =
  5. 5.81³ =
  6. 6.14³ =
  7. 7.89³ =
  8. 8.18³ =
  9. 9.96³ =
  10. 10.98³ =
  11. 11.45³ =
  12. 12.14³ =
  13. 13.71³ =
  14. 14.12³ =
  15. 15.64³ =
  16. 16.81³ =
  17. 17.96³ =
  18. 18.64³ =
  19. 19.62³ =
  20. 20.34³ =
  21. 21.98³ =
  22. 22.51³ =
  23. 23.68³ =
  24. 24.45³ =
  25. 25.96³ =
  26. 26.63³ =
  27. 27.29³ =
  28. 28.27³ =
  29. 29.44³ =
  30. 30.59³ =
  31. 31.38³ =
  32. 32.66³ =
  33. 33.96³ =
  34. 34.64³ =
  35. 35.27³ =
  36. 36.28³ =
  37. 37.42³ =
  38. 38.17³ =
  39. 39.81³ =
  40. 40.81³ =

Answer key

  1. 29791
  2. 287496
  3. 117649
  4. 19683
  5. 531441
  6. 2744
  7. 704969
  8. 5832
  9. 884736
  10. 941192
  11. 91125
  12. 2744
  13. 357911
  14. 1728
  15. 262144
  16. 531441
  17. 884736
  18. 262144
  19. 238328
  20. 39304
  21. 941192
  22. 132651
  23. 314432
  24. 91125
  25. 884736
  26. 250047
  27. 24389
  28. 19683
  29. 85184
  30. 205379
  31. 54872
  32. 287496
  33. 884736
  34. 262144
  35. 19683
  36. 21952
  37. 74088
  38. 4913
  39. 531441
  40. 531441

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