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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 97 · 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. 1.94³ =
  2. 2.89³ =
  3. 3.97³ =
  4. 4.87³ =
  5. 5.14³ =
  6. 6.95³ =
  7. 7.62³ =
  8. 8.47³ =
  9. 9.18³ =
  10. 10.69³ =
  11. 11.27³ =
  12. 12.47³ =
  13. 13.85³ =
  14. 14.71³ =
  15. 15.26³ =
  16. 16.13³ =
  17. 17.31³ =
  18. 18.68³ =
  19. 19.41³ =
  20. 20.62³ =
  21. 21.99³ =
  22. 22.89³ =
  23. 23.46³ =
  24. 24.79³ =
  25. 25.97³ =
  26. 26.62³ =
  27. 27.71³ =
  28. 28.26³ =
  29. 29.79³ =
  30. 30.91³ =
  31. 31.76³ =
  32. 32.56³ =
  33. 33.91³ =
  34. 34.47³ =
  35. 35.75³ =
  36. 36.63³ =
  37. 37.66³ =
  38. 38.42³ =
  39. 39.31³ =
  40. 40.69³ =

Answer key

  1. 830584
  2. 704969
  3. 912673
  4. 658503
  5. 2744
  6. 857375
  7. 238328
  8. 103823
  9. 5832
  10. 328509
  11. 19683
  12. 103823
  13. 614125
  14. 357911
  15. 17576
  16. 2197
  17. 29791
  18. 314432
  19. 68921
  20. 238328
  21. 970299
  22. 704969
  23. 97336
  24. 493039
  25. 912673
  26. 238328
  27. 357911
  28. 17576
  29. 493039
  30. 753571
  31. 438976
  32. 175616
  33. 753571
  34. 103823
  35. 421875
  36. 250047
  37. 287496
  38. 74088
  39. 29791
  40. 328509

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