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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 613 · 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. 1.22³ =
  2. 2.92³ =
  3. 3.93³ =
  4. 4.99³ =
  5. 5.81³ =
  6. 6.14³ =
  7. 7.26³ =
  8. 8.51³ =
  9. 9.21³ =
  10. 10.81³ =
  11. 11.13³ =
  12. 12.97³ =
  13. 13.51³ =
  14. 14.87³ =
  15. 15.62³ =
  16. 16.23³ =
  17. 17.59³ =
  18. 18.44³ =
  19. 19.43³ =
  20. 20.31³ =
  21. 21.33³ =
  22. 22.81³ =
  23. 23.63³ =
  24. 24.71³ =
  25. 25.75³ =
  26. 26.83³ =
  27. 27.33³ =
  28. 28.13³ =
  29. 29.71³ =
  30. 30.13³ =
  31. 31.16³ =
  32. 32.22³ =
  33. 33.63³ =
  34. 34.56³ =
  35. 35.62³ =
  36. 36.28³ =
  37. 37.33³ =
  38. 38.83³ =
  39. 39.75³ =
  40. 40.86³ =

Answer key

  1. 10648
  2. 778688
  3. 804357
  4. 970299
  5. 531441
  6. 2744
  7. 17576
  8. 132651
  9. 9261
  10. 531441
  11. 2197
  12. 912673
  13. 132651
  14. 658503
  15. 238328
  16. 12167
  17. 205379
  18. 85184
  19. 79507
  20. 29791
  21. 35937
  22. 531441
  23. 250047
  24. 357911
  25. 421875
  26. 571787
  27. 35937
  28. 2197
  29. 357911
  30. 2197
  31. 4096
  32. 10648
  33. 250047
  34. 175616
  35. 238328
  36. 21952
  37. 35937
  38. 571787
  39. 421875
  40. 636056

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