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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 393 · 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. 1.12³ =
  2. 2.55³ =
  3. 3.85³ =
  4. 4.92³ =
  5. 5.33³ =
  6. 6.63³ =
  7. 7.71³ =
  8. 8.24³ =
  9. 9.54³ =
  10. 10.97³ =
  11. 11.64³ =
  12. 12.31³ =
  13. 13.79³ =
  14. 14.21³ =
  15. 15.24³ =
  16. 16.49³ =
  17. 17.62³ =
  18. 18.32³ =
  19. 19.31³ =
  20. 20.25³ =
  21. 21.89³ =
  22. 22.44³ =
  23. 23.84³ =
  24. 24.38³ =
  25. 25.71³ =
  26. 26.88³ =
  27. 27.41³ =
  28. 28.12³ =
  29. 29.32³ =
  30. 30.11³ =
  31. 31.87³ =
  32. 32.21³ =
  33. 33.14³ =
  34. 34.66³ =
  35. 35.55³ =
  36. 36.42³ =
  37. 37.46³ =
  38. 38.29³ =
  39. 39.13³ =
  40. 40.15³ =

Answer key

  1. 1728
  2. 166375
  3. 614125
  4. 778688
  5. 35937
  6. 250047
  7. 357911
  8. 13824
  9. 157464
  10. 912673
  11. 262144
  12. 29791
  13. 493039
  14. 9261
  15. 13824
  16. 117649
  17. 238328
  18. 32768
  19. 29791
  20. 15625
  21. 704969
  22. 85184
  23. 592704
  24. 54872
  25. 357911
  26. 681472
  27. 68921
  28. 1728
  29. 32768
  30. 1331
  31. 658503
  32. 9261
  33. 2744
  34. 287496
  35. 166375
  36. 74088
  37. 97336
  38. 24389
  39. 2197
  40. 3375

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