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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 881 · 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. 1.17³ =
  2. 2.21³ =
  3. 3.23³ =
  4. 4.43³ =
  5. 5.13³ =
  6. 6.88³ =
  7. 7.24³ =
  8. 8.11³ =
  9. 9.71³ =
  10. 10.47³ =
  11. 11.28³ =
  12. 12.81³ =
  13. 13.36³ =
  14. 14.28³ =
  15. 15.88³ =
  16. 16.74³ =
  17. 17.97³ =
  18. 18.56³ =
  19. 19.27³ =
  20. 20.88³ =
  21. 21.81³ =
  22. 22.31³ =
  23. 23.69³ =
  24. 24.78³ =
  25. 25.52³ =
  26. 26.31³ =
  27. 27.13³ =
  28. 28.35³ =
  29. 29.31³ =
  30. 30.93³ =
  31. 31.58³ =
  32. 32.28³ =
  33. 33.61³ =
  34. 34.32³ =
  35. 35.59³ =
  36. 36.18³ =
  37. 37.62³ =
  38. 38.63³ =
  39. 39.63³ =
  40. 40.71³ =

Answer key

  1. 4913
  2. 9261
  3. 12167
  4. 79507
  5. 2197
  6. 681472
  7. 13824
  8. 1331
  9. 357911
  10. 103823
  11. 21952
  12. 531441
  13. 46656
  14. 21952
  15. 681472
  16. 405224
  17. 912673
  18. 175616
  19. 19683
  20. 681472
  21. 531441
  22. 29791
  23. 328509
  24. 474552
  25. 140608
  26. 29791
  27. 2197
  28. 42875
  29. 29791
  30. 804357
  31. 195112
  32. 21952
  33. 226981
  34. 32768
  35. 205379
  36. 5832
  37. 238328
  38. 250047
  39. 250047
  40. 357911

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