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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 523 · 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. 1.78³ =
  2. 2.39³ =
  3. 3.38³ =
  4. 4.39³ =
  5. 5.37³ =
  6. 6.43³ =
  7. 7.47³ =
  8. 8.61³ =
  9. 9.46³ =
  10. 10.96³ =
  11. 11.66³ =
  12. 12.29³ =
  13. 13.73³ =
  14. 14.46³ =
  15. 15.51³ =
  16. 16.61³ =
  17. 17.16³ =
  18. 18.51³ =
  19. 19.61³ =
  20. 20.41³ =
  21. 21.62³ =
  22. 22.89³ =
  23. 23.16³ =
  24. 24.95³ =
  25. 25.78³ =
  26. 26.75³ =
  27. 27.16³ =
  28. 28.31³ =
  29. 29.24³ =
  30. 30.74³ =
  31. 31.13³ =
  32. 32.94³ =
  33. 33.97³ =
  34. 34.94³ =
  35. 35.22³ =
  36. 36.76³ =
  37. 37.21³ =
  38. 38.44³ =
  39. 39.51³ =
  40. 40.31³ =

Answer key

  1. 474552
  2. 59319
  3. 54872
  4. 59319
  5. 50653
  6. 79507
  7. 103823
  8. 226981
  9. 97336
  10. 884736
  11. 287496
  12. 24389
  13. 389017
  14. 97336
  15. 132651
  16. 226981
  17. 4096
  18. 132651
  19. 226981
  20. 68921
  21. 238328
  22. 704969
  23. 4096
  24. 857375
  25. 474552
  26. 421875
  27. 4096
  28. 29791
  29. 13824
  30. 405224
  31. 2197
  32. 830584
  33. 912673
  34. 830584
  35. 10648
  36. 438976
  37. 9261
  38. 85184
  39. 132651
  40. 29791

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