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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 469 · 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. 1.83³ =
  2. 2.33³ =
  3. 3.31³ =
  4. 4.91³ =
  5. 5.72³ =
  6. 6.54³ =
  7. 7.31³ =
  8. 8.79³ =
  9. 9.55³ =
  10. 10.59³ =
  11. 11.57³ =
  12. 12.55³ =
  13. 13.67³ =
  14. 14.23³ =
  15. 15.47³ =
  16. 16.43³ =
  17. 17.34³ =
  18. 18.12³ =
  19. 19.21³ =
  20. 20.62³ =
  21. 21.46³ =
  22. 22.51³ =
  23. 23.58³ =
  24. 24.66³ =
  25. 25.25³ =
  26. 26.49³ =
  27. 27.66³ =
  28. 28.24³ =
  29. 29.33³ =
  30. 30.81³ =
  31. 31.47³ =
  32. 32.71³ =
  33. 33.29³ =
  34. 34.67³ =
  35. 35.29³ =
  36. 36.73³ =
  37. 37.71³ =
  38. 38.94³ =
  39. 39.41³ =
  40. 40.63³ =

Answer key

  1. 571787
  2. 35937
  3. 29791
  4. 753571
  5. 373248
  6. 157464
  7. 29791
  8. 493039
  9. 166375
  10. 205379
  11. 185193
  12. 166375
  13. 300763
  14. 12167
  15. 103823
  16. 79507
  17. 39304
  18. 1728
  19. 9261
  20. 238328
  21. 97336
  22. 132651
  23. 195112
  24. 287496
  25. 15625
  26. 117649
  27. 287496
  28. 13824
  29. 35937
  30. 531441
  31. 103823
  32. 357911
  33. 24389
  34. 300763
  35. 24389
  36. 389017
  37. 357911
  38. 830584
  39. 68921
  40. 250047

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