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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 464 · 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. 1.38³ =
  2. 2.61³ =
  3. 3.12³ =
  4. 4.16³ =
  5. 5.73³ =
  6. 6.21³ =
  7. 7.44³ =
  8. 8.12³ =
  9. 9.81³ =
  10. 10.81³ =
  11. 11.62³ =
  12. 12.62³ =
  13. 13.42³ =
  14. 14.27³ =
  15. 15.82³ =
  16. 16.73³ =
  17. 17.58³ =
  18. 18.36³ =
  19. 19.91³ =
  20. 20.62³ =
  21. 21.58³ =
  22. 22.71³ =
  23. 23.44³ =
  24. 24.41³ =
  25. 25.15³ =
  26. 26.62³ =
  27. 27.28³ =
  28. 28.67³ =
  29. 29.29³ =
  30. 30.69³ =
  31. 31.18³ =
  32. 32.16³ =
  33. 33.53³ =
  34. 34.29³ =
  35. 35.46³ =
  36. 36.23³ =
  37. 37.36³ =
  38. 38.56³ =
  39. 39.93³ =
  40. 40.27³ =

Answer key

  1. 54872
  2. 226981
  3. 1728
  4. 4096
  5. 389017
  6. 9261
  7. 85184
  8. 1728
  9. 531441
  10. 531441
  11. 238328
  12. 238328
  13. 74088
  14. 19683
  15. 551368
  16. 389017
  17. 195112
  18. 46656
  19. 753571
  20. 238328
  21. 195112
  22. 357911
  23. 85184
  24. 68921
  25. 3375
  26. 238328
  27. 21952
  28. 300763
  29. 24389
  30. 328509
  31. 5832
  32. 4096
  33. 148877
  34. 24389
  35. 97336
  36. 12167
  37. 46656
  38. 175616
  39. 804357
  40. 19683

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