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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 228 · 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. 1.41³ =
  2. 2.22³ =
  3. 3.65³ =
  4. 4.94³ =
  5. 5.41³ =
  6. 6.22³ =
  7. 7.41³ =
  8. 8.88³ =
  9. 9.49³ =
  10. 10.31³ =
  11. 11.52³ =
  12. 12.83³ =
  13. 13.54³ =
  14. 14.93³ =
  15. 15.51³ =
  16. 16.95³ =
  17. 17.25³ =
  18. 18.71³ =
  19. 19.75³ =
  20. 20.86³ =
  21. 21.89³ =
  22. 22.57³ =
  23. 23.52³ =
  24. 24.39³ =
  25. 25.12³ =
  26. 26.43³ =
  27. 27.38³ =
  28. 28.72³ =
  29. 29.97³ =
  30. 30.43³ =
  31. 31.63³ =
  32. 32.38³ =
  33. 33.47³ =
  34. 34.38³ =
  35. 35.37³ =
  36. 36.65³ =
  37. 37.34³ =
  38. 38.17³ =
  39. 39.15³ =
  40. 40.13³ =

Answer key

  1. 68921
  2. 10648
  3. 274625
  4. 830584
  5. 68921
  6. 10648
  7. 68921
  8. 681472
  9. 117649
  10. 29791
  11. 140608
  12. 571787
  13. 157464
  14. 804357
  15. 132651
  16. 857375
  17. 15625
  18. 357911
  19. 421875
  20. 636056
  21. 704969
  22. 185193
  23. 140608
  24. 59319
  25. 1728
  26. 79507
  27. 54872
  28. 373248
  29. 912673
  30. 79507
  31. 250047
  32. 54872
  33. 103823
  34. 54872
  35. 50653
  36. 274625
  37. 39304
  38. 4913
  39. 3375
  40. 2197

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