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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 835 · 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. 1.24³ =
  2. 2.74³ =
  3. 3.48³ =
  4. 4.21³ =
  5. 5.98³ =
  6. 6.34³ =
  7. 7.57³ =
  8. 8.97³ =
  9. 9.87³ =
  10. 10.91³ =
  11. 11.98³ =
  12. 12.22³ =
  13. 13.27³ =
  14. 14.31³ =
  15. 15.25³ =
  16. 16.31³ =
  17. 17.66³ =
  18. 18.61³ =
  19. 19.61³ =
  20. 20.67³ =
  21. 21.19³ =
  22. 22.93³ =
  23. 23.25³ =
  24. 24.86³ =
  25. 25.81³ =
  26. 26.22³ =
  27. 27.25³ =
  28. 28.17³ =
  29. 29.53³ =
  30. 30.51³ =
  31. 31.21³ =
  32. 32.42³ =
  33. 33.23³ =
  34. 34.51³ =
  35. 35.95³ =
  36. 36.36³ =
  37. 37.61³ =
  38. 38.43³ =
  39. 39.82³ =
  40. 40.39³ =

Answer key

  1. 13824
  2. 405224
  3. 110592
  4. 9261
  5. 941192
  6. 39304
  7. 185193
  8. 912673
  9. 658503
  10. 753571
  11. 941192
  12. 10648
  13. 19683
  14. 29791
  15. 15625
  16. 29791
  17. 287496
  18. 226981
  19. 226981
  20. 300763
  21. 6859
  22. 804357
  23. 15625
  24. 636056
  25. 531441
  26. 10648
  27. 15625
  28. 4913
  29. 148877
  30. 132651
  31. 9261
  32. 74088
  33. 12167
  34. 132651
  35. 857375
  36. 46656
  37. 226981
  38. 79507
  39. 551368
  40. 59319

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