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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 556 · 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. 1.98³ =
  2. 2.44³ =
  3. 3.79³ =
  4. 4.74³ =
  5. 5.82³ =
  6. 6.26³ =
  7. 7.89³ =
  8. 8.69³ =
  9. 9.81³ =
  10. 10.98³ =
  11. 11.89³ =
  12. 12.17³ =
  13. 13.68³ =
  14. 14.93³ =
  15. 15.86³ =
  16. 16.91³ =
  17. 17.31³ =
  18. 18.75³ =
  19. 19.67³ =
  20. 20.89³ =
  21. 21.13³ =
  22. 22.61³ =
  23. 23.39³ =
  24. 24.72³ =
  25. 25.56³ =
  26. 26.93³ =
  27. 27.49³ =
  28. 28.28³ =
  29. 29.85³ =
  30. 30.65³ =
  31. 31.82³ =
  32. 32.59³ =
  33. 33.84³ =
  34. 34.63³ =
  35. 35.23³ =
  36. 36.86³ =
  37. 37.21³ =
  38. 38.31³ =
  39. 39.47³ =
  40. 40.38³ =

Answer key

  1. 941192
  2. 85184
  3. 493039
  4. 405224
  5. 551368
  6. 17576
  7. 704969
  8. 328509
  9. 531441
  10. 941192
  11. 704969
  12. 4913
  13. 314432
  14. 804357
  15. 636056
  16. 753571
  17. 29791
  18. 421875
  19. 300763
  20. 704969
  21. 2197
  22. 226981
  23. 59319
  24. 373248
  25. 175616
  26. 804357
  27. 117649
  28. 21952
  29. 614125
  30. 274625
  31. 551368
  32. 205379
  33. 592704
  34. 250047
  35. 12167
  36. 636056
  37. 9261
  38. 29791
  39. 103823
  40. 54872

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