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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 884 · 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. 2.91³ =
  3. 3.13³ =
  4. 4.88³ =
  5. 5.46³ =
  6. 6.78³ =
  7. 7.64³ =
  8. 8.86³ =
  9. 9.65³ =
  10. 10.86³ =
  11. 11.18³ =
  12. 12.21³ =
  13. 13.53³ =
  14. 14.18³ =
  15. 15.59³ =
  16. 16.51³ =
  17. 17.28³ =
  18. 18.18³ =
  19. 19.52³ =
  20. 20.99³ =
  21. 21.51³ =
  22. 22.31³ =
  23. 23.32³ =
  24. 24.54³ =
  25. 25.45³ =
  26. 26.41³ =
  27. 27.43³ =
  28. 28.77³ =
  29. 29.39³ =
  30. 30.84³ =
  31. 31.28³ =
  32. 32.88³ =
  33. 33.83³ =
  34. 34.89³ =
  35. 35.93³ =
  36. 36.19³ =
  37. 37.72³ =
  38. 38.81³ =
  39. 39.27³ =
  40. 40.77³ =

Answer key

  1. 4913
  2. 753571
  3. 2197
  4. 681472
  5. 97336
  6. 474552
  7. 262144
  8. 636056
  9. 274625
  10. 636056
  11. 5832
  12. 9261
  13. 148877
  14. 5832
  15. 205379
  16. 132651
  17. 21952
  18. 5832
  19. 140608
  20. 970299
  21. 132651
  22. 29791
  23. 32768
  24. 157464
  25. 91125
  26. 68921
  27. 79507
  28. 456533
  29. 59319
  30. 592704
  31. 21952
  32. 681472
  33. 571787
  34. 704969
  35. 804357
  36. 6859
  37. 373248
  38. 531441
  39. 19683
  40. 456533

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