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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 281 · 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. 1.95³ =
  2. 2.54³ =
  3. 3.64³ =
  4. 4.71³ =
  5. 5.19³ =
  6. 6.99³ =
  7. 7.93³ =
  8. 8.12³ =
  9. 9.21³ =
  10. 10.37³ =
  11. 11.27³ =
  12. 12.61³ =
  13. 13.16³ =
  14. 14.96³ =
  15. 15.57³ =
  16. 16.25³ =
  17. 17.96³ =
  18. 18.51³ =
  19. 19.33³ =
  20. 20.45³ =
  21. 21.94³ =
  22. 22.34³ =
  23. 23.42³ =
  24. 24.19³ =
  25. 25.59³ =
  26. 26.39³ =
  27. 27.31³ =
  28. 28.81³ =
  29. 29.52³ =
  30. 30.93³ =
  31. 31.89³ =
  32. 32.97³ =
  33. 33.26³ =
  34. 34.91³ =
  35. 35.41³ =
  36. 36.83³ =
  37. 37.59³ =
  38. 38.43³ =
  39. 39.15³ =
  40. 40.15³ =

Answer key

  1. 857375
  2. 157464
  3. 262144
  4. 357911
  5. 6859
  6. 970299
  7. 804357
  8. 1728
  9. 9261
  10. 50653
  11. 19683
  12. 226981
  13. 4096
  14. 884736
  15. 185193
  16. 15625
  17. 884736
  18. 132651
  19. 35937
  20. 91125
  21. 830584
  22. 39304
  23. 74088
  24. 6859
  25. 205379
  26. 59319
  27. 29791
  28. 531441
  29. 140608
  30. 804357
  31. 704969
  32. 912673
  33. 17576
  34. 753571
  35. 68921
  36. 571787
  37. 205379
  38. 79507
  39. 3375
  40. 3375

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