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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 106 · 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. 1.85³ =
  2. 2.24³ =
  3. 3.73³ =
  4. 4.83³ =
  5. 5.38³ =
  6. 6.89³ =
  7. 7.35³ =
  8. 8.89³ =
  9. 9.88³ =
  10. 10.14³ =
  11. 11.15³ =
  12. 12.48³ =
  13. 13.37³ =
  14. 14.48³ =
  15. 15.51³ =
  16. 16.86³ =
  17. 17.81³ =
  18. 18.89³ =
  19. 19.61³ =
  20. 20.14³ =
  21. 21.75³ =
  22. 22.46³ =
  23. 23.76³ =
  24. 24.12³ =
  25. 25.97³ =
  26. 26.91³ =
  27. 27.41³ =
  28. 28.14³ =
  29. 29.96³ =
  30. 30.89³ =
  31. 31.15³ =
  32. 32.46³ =
  33. 33.31³ =
  34. 34.31³ =
  35. 35.26³ =
  36. 36.87³ =
  37. 37.32³ =
  38. 38.78³ =
  39. 39.59³ =
  40. 40.94³ =

Answer key

  1. 614125
  2. 13824
  3. 389017
  4. 571787
  5. 54872
  6. 704969
  7. 42875
  8. 704969
  9. 681472
  10. 2744
  11. 3375
  12. 110592
  13. 50653
  14. 110592
  15. 132651
  16. 636056
  17. 531441
  18. 704969
  19. 226981
  20. 2744
  21. 421875
  22. 97336
  23. 438976
  24. 1728
  25. 912673
  26. 753571
  27. 68921
  28. 2744
  29. 884736
  30. 704969
  31. 3375
  32. 97336
  33. 29791
  34. 29791
  35. 17576
  36. 658503
  37. 32768
  38. 474552
  39. 205379
  40. 830584

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