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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 515 · 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. 1.81³ =
  2. 2.91³ =
  3. 3.36³ =
  4. 4.47³ =
  5. 5.34³ =
  6. 6.16³ =
  7. 7.82³ =
  8. 8.98³ =
  9. 9.25³ =
  10. 10.23³ =
  11. 11.58³ =
  12. 12.26³ =
  13. 13.14³ =
  14. 14.87³ =
  15. 15.58³ =
  16. 16.73³ =
  17. 17.18³ =
  18. 18.71³ =
  19. 19.51³ =
  20. 20.29³ =
  21. 21.46³ =
  22. 22.23³ =
  23. 23.56³ =
  24. 24.35³ =
  25. 25.48³ =
  26. 26.89³ =
  27. 27.45³ =
  28. 28.51³ =
  29. 29.67³ =
  30. 30.96³ =
  31. 31.65³ =
  32. 32.44³ =
  33. 33.63³ =
  34. 34.32³ =
  35. 35.61³ =
  36. 36.57³ =
  37. 37.12³ =
  38. 38.51³ =
  39. 39.63³ =
  40. 40.43³ =

Answer key

  1. 531441
  2. 753571
  3. 46656
  4. 103823
  5. 39304
  6. 4096
  7. 551368
  8. 941192
  9. 15625
  10. 12167
  11. 195112
  12. 17576
  13. 2744
  14. 658503
  15. 195112
  16. 389017
  17. 5832
  18. 357911
  19. 132651
  20. 24389
  21. 97336
  22. 12167
  23. 175616
  24. 42875
  25. 110592
  26. 704969
  27. 91125
  28. 132651
  29. 300763
  30. 884736
  31. 274625
  32. 85184
  33. 250047
  34. 32768
  35. 226981
  36. 185193
  37. 1728
  38. 132651
  39. 250047
  40. 79507

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