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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 57 · 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. 2.41³ =
  3. 3.17³ =
  4. 4.31³ =
  5. 5.34³ =
  6. 6.94³ =
  7. 7.92³ =
  8. 8.34³ =
  9. 9.24³ =
  10. 10.66³ =
  11. 11.81³ =
  12. 12.11³ =
  13. 13.19³ =
  14. 14.11³ =
  15. 15.52³ =
  16. 16.58³ =
  17. 17.52³ =
  18. 18.85³ =
  19. 19.81³ =
  20. 20.71³ =
  21. 21.31³ =
  22. 22.91³ =
  23. 23.52³ =
  24. 24.71³ =
  25. 25.31³ =
  26. 26.89³ =
  27. 27.71³ =
  28. 28.41³ =
  29. 29.58³ =
  30. 30.57³ =
  31. 31.18³ =
  32. 32.28³ =
  33. 33.21³ =
  34. 34.54³ =
  35. 35.71³ =
  36. 36.36³ =
  37. 37.31³ =
  38. 38.47³ =
  39. 39.19³ =
  40. 40.81³ =

Answer key

  1. 54872
  2. 68921
  3. 4913
  4. 29791
  5. 39304
  6. 830584
  7. 778688
  8. 39304
  9. 13824
  10. 287496
  11. 531441
  12. 1331
  13. 6859
  14. 1331
  15. 140608
  16. 195112
  17. 140608
  18. 614125
  19. 531441
  20. 357911
  21. 29791
  22. 753571
  23. 140608
  24. 357911
  25. 29791
  26. 704969
  27. 357911
  28. 68921
  29. 195112
  30. 185193
  31. 5832
  32. 21952
  33. 9261
  34. 157464
  35. 357911
  36. 46656
  37. 29791
  38. 103823
  39. 6859
  40. 531441

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