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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 963 · 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. 1.43³ =
  2. 2.25³ =
  3. 3.79³ =
  4. 4.43³ =
  5. 5.33³ =
  6. 6.59³ =
  7. 7.82³ =
  8. 8.93³ =
  9. 9.32³ =
  10. 10.98³ =
  11. 11.12³ =
  12. 12.21³ =
  13. 13.73³ =
  14. 14.97³ =
  15. 15.38³ =
  16. 16.15³ =
  17. 17.17³ =
  18. 18.74³ =
  19. 19.37³ =
  20. 20.97³ =
  21. 21.25³ =
  22. 22.22³ =
  23. 23.14³ =
  24. 24.55³ =
  25. 25.64³ =
  26. 26.85³ =
  27. 27.53³ =
  28. 28.46³ =
  29. 29.37³ =
  30. 30.79³ =
  31. 31.34³ =
  32. 32.99³ =
  33. 33.42³ =
  34. 34.44³ =
  35. 35.82³ =
  36. 36.42³ =
  37. 37.92³ =
  38. 38.66³ =
  39. 39.31³ =
  40. 40.31³ =

Answer key

  1. 79507
  2. 15625
  3. 493039
  4. 79507
  5. 35937
  6. 205379
  7. 551368
  8. 804357
  9. 32768
  10. 941192
  11. 1728
  12. 9261
  13. 389017
  14. 912673
  15. 54872
  16. 3375
  17. 4913
  18. 405224
  19. 50653
  20. 912673
  21. 15625
  22. 10648
  23. 2744
  24. 166375
  25. 262144
  26. 614125
  27. 148877
  28. 97336
  29. 50653
  30. 493039
  31. 39304
  32. 970299
  33. 74088
  34. 85184
  35. 551368
  36. 74088
  37. 778688
  38. 287496
  39. 29791
  40. 29791

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