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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 340 · 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. 2.45³ =
  3. 3.23³ =
  4. 4.41³ =
  5. 5.69³ =
  6. 6.99³ =
  7. 7.58³ =
  8. 8.89³ =
  9. 9.58³ =
  10. 10.48³ =
  11. 11.41³ =
  12. 12.27³ =
  13. 13.55³ =
  14. 14.79³ =
  15. 15.54³ =
  16. 16.81³ =
  17. 17.91³ =
  18. 18.17³ =
  19. 19.58³ =
  20. 20.65³ =
  21. 21.98³ =
  22. 22.44³ =
  23. 23.41³ =
  24. 24.14³ =
  25. 25.93³ =
  26. 26.17³ =
  27. 27.21³ =
  28. 28.89³ =
  29. 29.89³ =
  30. 30.18³ =
  31. 31.69³ =
  32. 32.44³ =
  33. 33.41³ =
  34. 34.25³ =
  35. 35.74³ =
  36. 36.46³ =
  37. 37.13³ =
  38. 38.59³ =
  39. 39.62³ =
  40. 40.92³ =

Answer key

  1. 250047
  2. 91125
  3. 12167
  4. 68921
  5. 328509
  6. 970299
  7. 195112
  8. 704969
  9. 195112
  10. 110592
  11. 68921
  12. 19683
  13. 166375
  14. 493039
  15. 157464
  16. 531441
  17. 753571
  18. 4913
  19. 195112
  20. 274625
  21. 941192
  22. 85184
  23. 68921
  24. 2744
  25. 804357
  26. 4913
  27. 9261
  28. 704969
  29. 704969
  30. 5832
  31. 328509
  32. 85184
  33. 68921
  34. 15625
  35. 405224
  36. 97336
  37. 2197
  38. 205379
  39. 238328
  40. 778688

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