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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 174 · 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. 1.71³ =
  2. 2.27³ =
  3. 3.35³ =
  4. 4.11³ =
  5. 5.24³ =
  6. 6.22³ =
  7. 7.41³ =
  8. 8.33³ =
  9. 9.89³ =
  10. 10.39³ =
  11. 11.34³ =
  12. 12.34³ =
  13. 13.81³ =
  14. 14.68³ =
  15. 15.11³ =
  16. 16.93³ =
  17. 17.12³ =
  18. 18.43³ =
  19. 19.64³ =
  20. 20.11³ =
  21. 21.35³ =
  22. 22.75³ =
  23. 23.27³ =
  24. 24.49³ =
  25. 25.63³ =
  26. 26.67³ =
  27. 27.93³ =
  28. 28.21³ =
  29. 29.79³ =
  30. 30.21³ =
  31. 31.29³ =
  32. 32.85³ =
  33. 33.31³ =
  34. 34.76³ =
  35. 35.69³ =
  36. 36.91³ =
  37. 37.39³ =
  38. 38.26³ =
  39. 39.95³ =
  40. 40.56³ =

Answer key

  1. 357911
  2. 19683
  3. 42875
  4. 1331
  5. 13824
  6. 10648
  7. 68921
  8. 35937
  9. 704969
  10. 59319
  11. 39304
  12. 39304
  13. 531441
  14. 314432
  15. 1331
  16. 804357
  17. 1728
  18. 79507
  19. 262144
  20. 1331
  21. 42875
  22. 421875
  23. 19683
  24. 117649
  25. 250047
  26. 300763
  27. 804357
  28. 9261
  29. 493039
  30. 9261
  31. 24389
  32. 614125
  33. 29791
  34. 438976
  35. 328509
  36. 753571
  37. 59319
  38. 17576
  39. 857375
  40. 175616

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