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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 25 · 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. 1.55³ =
  2. 2.37³ =
  3. 3.37³ =
  4. 4.61³ =
  5. 5.73³ =
  6. 6.34³ =
  7. 7.23³ =
  8. 8.93³ =
  9. 9.63³ =
  10. 10.17³ =
  11. 11.16³ =
  12. 12.44³ =
  13. 13.56³ =
  14. 14.21³ =
  15. 15.32³ =
  16. 16.84³ =
  17. 17.97³ =
  18. 18.73³ =
  19. 19.11³ =
  20. 20.13³ =
  21. 21.36³ =
  22. 22.77³ =
  23. 23.39³ =
  24. 24.34³ =
  25. 25.78³ =
  26. 26.22³ =
  27. 27.76³ =
  28. 28.61³ =
  29. 29.15³ =
  30. 30.29³ =
  31. 31.44³ =
  32. 32.73³ =
  33. 33.65³ =
  34. 34.93³ =
  35. 35.71³ =
  36. 36.31³ =
  37. 37.99³ =
  38. 38.31³ =
  39. 39.41³ =
  40. 40.27³ =

Answer key

  1. 166375
  2. 50653
  3. 50653
  4. 226981
  5. 389017
  6. 39304
  7. 12167
  8. 804357
  9. 250047
  10. 4913
  11. 4096
  12. 85184
  13. 175616
  14. 9261
  15. 32768
  16. 592704
  17. 912673
  18. 389017
  19. 1331
  20. 2197
  21. 46656
  22. 456533
  23. 59319
  24. 39304
  25. 474552
  26. 10648
  27. 438976
  28. 226981
  29. 3375
  30. 24389
  31. 85184
  32. 389017
  33. 274625
  34. 804357
  35. 357911
  36. 29791
  37. 970299
  38. 29791
  39. 68921
  40. 19683

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