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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 417 · 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. 1.29³ =
  2. 2.35³ =
  3. 3.21³ =
  4. 4.12³ =
  5. 5.33³ =
  6. 6.17³ =
  7. 7.89³ =
  8. 8.95³ =
  9. 9.78³ =
  10. 10.54³ =
  11. 11.31³ =
  12. 12.87³ =
  13. 13.16³ =
  14. 14.13³ =
  15. 15.42³ =
  16. 16.57³ =
  17. 17.36³ =
  18. 18.46³ =
  19. 19.66³ =
  20. 20.26³ =
  21. 21.21³ =
  22. 22.99³ =
  23. 23.58³ =
  24. 24.43³ =
  25. 25.71³ =
  26. 26.31³ =
  27. 27.71³ =
  28. 28.92³ =
  29. 29.57³ =
  30. 30.87³ =
  31. 31.81³ =
  32. 32.81³ =
  33. 33.41³ =
  34. 34.35³ =
  35. 35.71³ =
  36. 36.23³ =
  37. 37.86³ =
  38. 38.31³ =
  39. 39.91³ =
  40. 40.69³ =

Answer key

  1. 24389
  2. 42875
  3. 9261
  4. 1728
  5. 35937
  6. 4913
  7. 704969
  8. 857375
  9. 474552
  10. 157464
  11. 29791
  12. 658503
  13. 4096
  14. 2197
  15. 74088
  16. 185193
  17. 46656
  18. 97336
  19. 287496
  20. 17576
  21. 9261
  22. 970299
  23. 195112
  24. 79507
  25. 357911
  26. 29791
  27. 357911
  28. 778688
  29. 185193
  30. 658503
  31. 531441
  32. 531441
  33. 68921
  34. 42875
  35. 357911
  36. 12167
  37. 636056
  38. 29791
  39. 753571
  40. 328509

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