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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 622 · 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. 1.46³ =
  2. 2.65³ =
  3. 3.69³ =
  4. 4.38³ =
  5. 5.71³ =
  6. 6.41³ =
  7. 7.27³ =
  8. 8.18³ =
  9. 9.85³ =
  10. 10.99³ =
  11. 11.64³ =
  12. 12.42³ =
  13. 13.51³ =
  14. 14.55³ =
  15. 15.41³ =
  16. 16.15³ =
  17. 17.93³ =
  18. 18.49³ =
  19. 19.74³ =
  20. 20.35³ =
  21. 21.79³ =
  22. 22.91³ =
  23. 23.13³ =
  24. 24.13³ =
  25. 25.83³ =
  26. 26.24³ =
  27. 27.19³ =
  28. 28.44³ =
  29. 29.81³ =
  30. 30.17³ =
  31. 31.56³ =
  32. 32.24³ =
  33. 33.95³ =
  34. 34.21³ =
  35. 35.44³ =
  36. 36.81³ =
  37. 37.75³ =
  38. 38.95³ =
  39. 39.61³ =
  40. 40.52³ =

Answer key

  1. 97336
  2. 274625
  3. 328509
  4. 54872
  5. 357911
  6. 68921
  7. 19683
  8. 5832
  9. 614125
  10. 970299
  11. 262144
  12. 74088
  13. 132651
  14. 166375
  15. 68921
  16. 3375
  17. 804357
  18. 117649
  19. 405224
  20. 42875
  21. 493039
  22. 753571
  23. 2197
  24. 2197
  25. 571787
  26. 13824
  27. 6859
  28. 85184
  29. 531441
  30. 4913
  31. 175616
  32. 13824
  33. 857375
  34. 9261
  35. 85184
  36. 531441
  37. 421875
  38. 857375
  39. 226981
  40. 140608

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