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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 462 · 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. 1.84³ =
  2. 2.82³ =
  3. 3.41³ =
  4. 4.12³ =
  5. 5.87³ =
  6. 6.55³ =
  7. 7.79³ =
  8. 8.22³ =
  9. 9.32³ =
  10. 10.75³ =
  11. 11.79³ =
  12. 12.11³ =
  13. 13.31³ =
  14. 14.18³ =
  15. 15.47³ =
  16. 16.65³ =
  17. 17.68³ =
  18. 18.48³ =
  19. 19.91³ =
  20. 20.39³ =
  21. 21.41³ =
  22. 22.99³ =
  23. 23.71³ =
  24. 24.97³ =
  25. 25.26³ =
  26. 26.78³ =
  27. 27.89³ =
  28. 28.69³ =
  29. 29.48³ =
  30. 30.81³ =
  31. 31.28³ =
  32. 32.63³ =
  33. 33.52³ =
  34. 34.21³ =
  35. 35.85³ =
  36. 36.36³ =
  37. 37.16³ =
  38. 38.49³ =
  39. 39.16³ =
  40. 40.81³ =

Answer key

  1. 592704
  2. 551368
  3. 68921
  4. 1728
  5. 658503
  6. 166375
  7. 493039
  8. 10648
  9. 32768
  10. 421875
  11. 493039
  12. 1331
  13. 29791
  14. 5832
  15. 103823
  16. 274625
  17. 314432
  18. 110592
  19. 753571
  20. 59319
  21. 68921
  22. 970299
  23. 357911
  24. 912673
  25. 17576
  26. 474552
  27. 704969
  28. 328509
  29. 110592
  30. 531441
  31. 21952
  32. 250047
  33. 140608
  34. 9261
  35. 614125
  36. 46656
  37. 4096
  38. 117649
  39. 4096
  40. 531441

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