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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 578 · 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. 1.99³ =
  2. 2.63³ =
  3. 3.66³ =
  4. 4.63³ =
  5. 5.54³ =
  6. 6.47³ =
  7. 7.75³ =
  8. 8.35³ =
  9. 9.99³ =
  10. 10.18³ =
  11. 11.86³ =
  12. 12.19³ =
  13. 13.42³ =
  14. 14.21³ =
  15. 15.88³ =
  16. 16.54³ =
  17. 17.36³ =
  18. 18.39³ =
  19. 19.79³ =
  20. 20.98³ =
  21. 21.23³ =
  22. 22.72³ =
  23. 23.34³ =
  24. 24.61³ =
  25. 25.31³ =
  26. 26.23³ =
  27. 27.61³ =
  28. 28.81³ =
  29. 29.71³ =
  30. 30.34³ =
  31. 31.18³ =
  32. 32.16³ =
  33. 33.72³ =
  34. 34.52³ =
  35. 35.37³ =
  36. 36.16³ =
  37. 37.62³ =
  38. 38.81³ =
  39. 39.31³ =
  40. 40.15³ =

Answer key

  1. 970299
  2. 250047
  3. 287496
  4. 250047
  5. 157464
  6. 103823
  7. 421875
  8. 42875
  9. 970299
  10. 5832
  11. 636056
  12. 6859
  13. 74088
  14. 9261
  15. 681472
  16. 157464
  17. 46656
  18. 59319
  19. 493039
  20. 941192
  21. 12167
  22. 373248
  23. 39304
  24. 226981
  25. 29791
  26. 12167
  27. 226981
  28. 531441
  29. 357911
  30. 39304
  31. 5832
  32. 4096
  33. 373248
  34. 140608
  35. 50653
  36. 4096
  37. 238328
  38. 531441
  39. 29791
  40. 3375

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