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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 342 · 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. 1.63³ =
  2. 2.21³ =
  3. 3.92³ =
  4. 4.97³ =
  5. 5.56³ =
  6. 6.49³ =
  7. 7.35³ =
  8. 8.77³ =
  9. 9.78³ =
  10. 10.21³ =
  11. 11.14³ =
  12. 12.44³ =
  13. 13.79³ =
  14. 14.71³ =
  15. 15.18³ =
  16. 16.13³ =
  17. 17.74³ =
  18. 18.84³ =
  19. 19.43³ =
  20. 20.55³ =
  21. 21.21³ =
  22. 22.43³ =
  23. 23.87³ =
  24. 24.17³ =
  25. 25.62³ =
  26. 26.46³ =
  27. 27.81³ =
  28. 28.37³ =
  29. 29.17³ =
  30. 30.85³ =
  31. 31.48³ =
  32. 32.86³ =
  33. 33.69³ =
  34. 34.34³ =
  35. 35.47³ =
  36. 36.31³ =
  37. 37.64³ =
  38. 38.69³ =
  39. 39.73³ =
  40. 40.22³ =

Answer key

  1. 250047
  2. 9261
  3. 778688
  4. 912673
  5. 175616
  6. 117649
  7. 42875
  8. 456533
  9. 474552
  10. 9261
  11. 2744
  12. 85184
  13. 493039
  14. 357911
  15. 5832
  16. 2197
  17. 405224
  18. 592704
  19. 79507
  20. 166375
  21. 9261
  22. 79507
  23. 658503
  24. 4913
  25. 238328
  26. 97336
  27. 531441
  28. 50653
  29. 4913
  30. 614125
  31. 110592
  32. 636056
  33. 328509
  34. 39304
  35. 103823
  36. 29791
  37. 262144
  38. 328509
  39. 389017
  40. 10648

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