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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 745 · 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. 1.93³ =
  2. 2.11³ =
  3. 3.89³ =
  4. 4.96³ =
  5. 5.78³ =
  6. 6.92³ =
  7. 7.28³ =
  8. 8.31³ =
  9. 9.93³ =
  10. 10.13³ =
  11. 11.22³ =
  12. 12.21³ =
  13. 13.28³ =
  14. 14.24³ =
  15. 15.17³ =
  16. 16.47³ =
  17. 17.83³ =
  18. 18.38³ =
  19. 19.18³ =
  20. 20.15³ =
  21. 21.36³ =
  22. 22.21³ =
  23. 23.45³ =
  24. 24.93³ =
  25. 25.65³ =
  26. 26.94³ =
  27. 27.27³ =
  28. 28.78³ =
  29. 29.84³ =
  30. 30.61³ =
  31. 31.27³ =
  32. 32.19³ =
  33. 33.74³ =
  34. 34.96³ =
  35. 35.86³ =
  36. 36.45³ =
  37. 37.21³ =
  38. 38.14³ =
  39. 39.25³ =
  40. 40.55³ =

Answer key

  1. 804357
  2. 1331
  3. 704969
  4. 884736
  5. 474552
  6. 778688
  7. 21952
  8. 29791
  9. 804357
  10. 2197
  11. 10648
  12. 9261
  13. 21952
  14. 13824
  15. 4913
  16. 103823
  17. 571787
  18. 54872
  19. 5832
  20. 3375
  21. 46656
  22. 9261
  23. 91125
  24. 804357
  25. 274625
  26. 830584
  27. 19683
  28. 474552
  29. 592704
  30. 226981
  31. 19683
  32. 6859
  33. 405224
  34. 884736
  35. 636056
  36. 91125
  37. 9261
  38. 2744
  39. 15625
  40. 166375

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