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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 62 · 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. 1.28³ =
  2. 2.36³ =
  3. 3.41³ =
  4. 4.75³ =
  5. 5.93³ =
  6. 6.79³ =
  7. 7.81³ =
  8. 8.31³ =
  9. 9.62³ =
  10. 10.21³ =
  11. 11.76³ =
  12. 12.71³ =
  13. 13.17³ =
  14. 14.46³ =
  15. 15.88³ =
  16. 16.82³ =
  17. 17.48³ =
  18. 18.43³ =
  19. 19.63³ =
  20. 20.13³ =
  21. 21.23³ =
  22. 22.29³ =
  23. 23.25³ =
  24. 24.91³ =
  25. 25.69³ =
  26. 26.21³ =
  27. 27.18³ =
  28. 28.88³ =
  29. 29.14³ =
  30. 30.91³ =
  31. 31.64³ =
  32. 32.98³ =
  33. 33.38³ =
  34. 34.32³ =
  35. 35.72³ =
  36. 36.81³ =
  37. 37.91³ =
  38. 38.88³ =
  39. 39.63³ =
  40. 40.49³ =

Answer key

  1. 21952
  2. 46656
  3. 68921
  4. 421875
  5. 804357
  6. 493039
  7. 531441
  8. 29791
  9. 238328
  10. 9261
  11. 438976
  12. 357911
  13. 4913
  14. 97336
  15. 681472
  16. 551368
  17. 110592
  18. 79507
  19. 250047
  20. 2197
  21. 12167
  22. 24389
  23. 15625
  24. 753571
  25. 328509
  26. 9261
  27. 5832
  28. 681472
  29. 2744
  30. 753571
  31. 262144
  32. 941192
  33. 54872
  34. 32768
  35. 373248
  36. 531441
  37. 753571
  38. 681472
  39. 250047
  40. 117649

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