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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 73 · 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. 1.89³ =
  2. 2.38³ =
  3. 3.22³ =
  4. 4.28³ =
  5. 5.56³ =
  6. 6.21³ =
  7. 7.66³ =
  8. 8.56³ =
  9. 9.54³ =
  10. 10.23³ =
  11. 11.84³ =
  12. 12.65³ =
  13. 13.43³ =
  14. 14.73³ =
  15. 15.26³ =
  16. 16.71³ =
  17. 17.25³ =
  18. 18.82³ =
  19. 19.96³ =
  20. 20.43³ =
  21. 21.61³ =
  22. 22.84³ =
  23. 23.49³ =
  24. 24.48³ =
  25. 25.89³ =
  26. 26.48³ =
  27. 27.72³ =
  28. 28.45³ =
  29. 29.48³ =
  30. 30.28³ =
  31. 31.33³ =
  32. 32.93³ =
  33. 33.75³ =
  34. 34.34³ =
  35. 35.75³ =
  36. 36.87³ =
  37. 37.93³ =
  38. 38.12³ =
  39. 39.91³ =
  40. 40.76³ =

Answer key

  1. 704969
  2. 54872
  3. 10648
  4. 21952
  5. 175616
  6. 9261
  7. 287496
  8. 175616
  9. 157464
  10. 12167
  11. 592704
  12. 274625
  13. 79507
  14. 389017
  15. 17576
  16. 357911
  17. 15625
  18. 551368
  19. 884736
  20. 79507
  21. 226981
  22. 592704
  23. 117649
  24. 110592
  25. 704969
  26. 110592
  27. 373248
  28. 91125
  29. 110592
  30. 21952
  31. 35937
  32. 804357
  33. 421875
  34. 39304
  35. 421875
  36. 658503
  37. 804357
  38. 1728
  39. 753571
  40. 438976

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