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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 626 · 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. 1.71³ =
  2. 2.64³ =
  3. 3.61³ =
  4. 4.48³ =
  5. 5.37³ =
  6. 6.84³ =
  7. 7.53³ =
  8. 8.74³ =
  9. 9.96³ =
  10. 10.57³ =
  11. 11.54³ =
  12. 12.26³ =
  13. 13.12³ =
  14. 14.12³ =
  15. 15.27³ =
  16. 16.46³ =
  17. 17.62³ =
  18. 18.75³ =
  19. 19.61³ =
  20. 20.92³ =
  21. 21.63³ =
  22. 22.77³ =
  23. 23.86³ =
  24. 24.32³ =
  25. 25.36³ =
  26. 26.95³ =
  27. 27.35³ =
  28. 28.43³ =
  29. 29.31³ =
  30. 30.64³ =
  31. 31.35³ =
  32. 32.53³ =
  33. 33.37³ =
  34. 34.32³ =
  35. 35.32³ =
  36. 36.38³ =
  37. 37.21³ =
  38. 38.16³ =
  39. 39.62³ =
  40. 40.22³ =

Answer key

  1. 357911
  2. 262144
  3. 226981
  4. 110592
  5. 50653
  6. 592704
  7. 148877
  8. 405224
  9. 884736
  10. 185193
  11. 157464
  12. 17576
  13. 1728
  14. 1728
  15. 19683
  16. 97336
  17. 238328
  18. 421875
  19. 226981
  20. 778688
  21. 250047
  22. 456533
  23. 636056
  24. 32768
  25. 46656
  26. 857375
  27. 42875
  28. 79507
  29. 29791
  30. 262144
  31. 42875
  32. 148877
  33. 50653
  34. 32768
  35. 32768
  36. 54872
  37. 9261
  38. 4096
  39. 238328
  40. 10648

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