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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 743 · 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. 2.31³ =
  3. 3.31³ =
  4. 4.51³ =
  5. 5.85³ =
  6. 6.78³ =
  7. 7.81³ =
  8. 8.23³ =
  9. 9.68³ =
  10. 10.67³ =
  11. 11.17³ =
  12. 12.41³ =
  13. 13.26³ =
  14. 14.81³ =
  15. 15.47³ =
  16. 16.69³ =
  17. 17.49³ =
  18. 18.69³ =
  19. 19.21³ =
  20. 20.25³ =
  21. 21.48³ =
  22. 22.41³ =
  23. 23.13³ =
  24. 24.21³ =
  25. 25.37³ =
  26. 26.91³ =
  27. 27.34³ =
  28. 28.71³ =
  29. 29.46³ =
  30. 30.33³ =
  31. 31.41³ =
  32. 32.12³ =
  33. 33.29³ =
  34. 34.91³ =
  35. 35.18³ =
  36. 36.84³ =
  37. 37.63³ =
  38. 38.41³ =
  39. 39.96³ =
  40. 40.63³ =

Answer key

  1. 830584
  2. 29791
  3. 29791
  4. 132651
  5. 614125
  6. 474552
  7. 531441
  8. 12167
  9. 314432
  10. 300763
  11. 4913
  12. 68921
  13. 17576
  14. 531441
  15. 103823
  16. 328509
  17. 117649
  18. 328509
  19. 9261
  20. 15625
  21. 110592
  22. 68921
  23. 2197
  24. 9261
  25. 50653
  26. 753571
  27. 39304
  28. 357911
  29. 97336
  30. 35937
  31. 68921
  32. 1728
  33. 24389
  34. 753571
  35. 5832
  36. 592704
  37. 250047
  38. 68921
  39. 884736
  40. 250047

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