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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 652 · 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. 1.63³ =
  2. 2.61³ =
  3. 3.82³ =
  4. 4.21³ =
  5. 5.15³ =
  6. 6.89³ =
  7. 7.55³ =
  8. 8.42³ =
  9. 9.17³ =
  10. 10.61³ =
  11. 11.52³ =
  12. 12.64³ =
  13. 13.66³ =
  14. 14.74³ =
  15. 15.91³ =
  16. 16.11³ =
  17. 17.82³ =
  18. 18.75³ =
  19. 19.29³ =
  20. 20.17³ =
  21. 21.56³ =
  22. 22.71³ =
  23. 23.55³ =
  24. 24.25³ =
  25. 25.81³ =
  26. 26.92³ =
  27. 27.27³ =
  28. 28.62³ =
  29. 29.63³ =
  30. 30.55³ =
  31. 31.17³ =
  32. 32.98³ =
  33. 33.43³ =
  34. 34.93³ =
  35. 35.71³ =
  36. 36.79³ =
  37. 37.95³ =
  38. 38.28³ =
  39. 39.36³ =
  40. 40.87³ =

Answer key

  1. 250047
  2. 226981
  3. 551368
  4. 9261
  5. 3375
  6. 704969
  7. 166375
  8. 74088
  9. 4913
  10. 226981
  11. 140608
  12. 262144
  13. 287496
  14. 405224
  15. 753571
  16. 1331
  17. 551368
  18. 421875
  19. 24389
  20. 4913
  21. 175616
  22. 357911
  23. 166375
  24. 15625
  25. 531441
  26. 778688
  27. 19683
  28. 238328
  29. 250047
  30. 166375
  31. 4913
  32. 941192
  33. 79507
  34. 804357
  35. 357911
  36. 493039
  37. 857375
  38. 21952
  39. 46656
  40. 658503

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