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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 210 · 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. 1.91³ =
  2. 2.12³ =
  3. 3.17³ =
  4. 4.45³ =
  5. 5.98³ =
  6. 6.62³ =
  7. 7.48³ =
  8. 8.46³ =
  9. 9.34³ =
  10. 10.23³ =
  11. 11.61³ =
  12. 12.47³ =
  13. 13.84³ =
  14. 14.72³ =
  15. 15.83³ =
  16. 16.81³ =
  17. 17.99³ =
  18. 18.13³ =
  19. 19.62³ =
  20. 20.75³ =
  21. 21.21³ =
  22. 22.91³ =
  23. 23.38³ =
  24. 24.48³ =
  25. 25.17³ =
  26. 26.61³ =
  27. 27.34³ =
  28. 28.62³ =
  29. 29.16³ =
  30. 30.84³ =
  31. 31.81³ =
  32. 32.12³ =
  33. 33.12³ =
  34. 34.18³ =
  35. 35.56³ =
  36. 36.71³ =
  37. 37.93³ =
  38. 38.21³ =
  39. 39.28³ =
  40. 40.78³ =

Answer key

  1. 753571
  2. 1728
  3. 4913
  4. 91125
  5. 941192
  6. 238328
  7. 110592
  8. 97336
  9. 39304
  10. 12167
  11. 226981
  12. 103823
  13. 592704
  14. 373248
  15. 571787
  16. 531441
  17. 970299
  18. 2197
  19. 238328
  20. 421875
  21. 9261
  22. 753571
  23. 54872
  24. 110592
  25. 4913
  26. 226981
  27. 39304
  28. 238328
  29. 4096
  30. 592704
  31. 531441
  32. 1728
  33. 1728
  34. 5832
  35. 175616
  36. 357911
  37. 804357
  38. 9261
  39. 21952
  40. 474552

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