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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 191 · 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. 1.55³ =
  2. 2.47³ =
  3. 3.22³ =
  4. 4.37³ =
  5. 5.85³ =
  6. 6.85³ =
  7. 7.22³ =
  8. 8.18³ =
  9. 9.41³ =
  10. 10.34³ =
  11. 11.11³ =
  12. 12.47³ =
  13. 13.78³ =
  14. 14.71³ =
  15. 15.79³ =
  16. 16.97³ =
  17. 17.11³ =
  18. 18.44³ =
  19. 19.55³ =
  20. 20.24³ =
  21. 21.61³ =
  22. 22.66³ =
  23. 23.13³ =
  24. 24.61³ =
  25. 25.91³ =
  26. 26.23³ =
  27. 27.23³ =
  28. 28.61³ =
  29. 29.46³ =
  30. 30.76³ =
  31. 31.55³ =
  32. 32.97³ =
  33. 33.39³ =
  34. 34.35³ =
  35. 35.67³ =
  36. 36.21³ =
  37. 37.84³ =
  38. 38.76³ =
  39. 39.55³ =
  40. 40.96³ =

Answer key

  1. 166375
  2. 103823
  3. 10648
  4. 50653
  5. 614125
  6. 614125
  7. 10648
  8. 5832
  9. 68921
  10. 39304
  11. 1331
  12. 103823
  13. 474552
  14. 357911
  15. 493039
  16. 912673
  17. 1331
  18. 85184
  19. 166375
  20. 13824
  21. 226981
  22. 287496
  23. 2197
  24. 226981
  25. 753571
  26. 12167
  27. 12167
  28. 226981
  29. 97336
  30. 438976
  31. 166375
  32. 912673
  33. 59319
  34. 42875
  35. 300763
  36. 9261
  37. 592704
  38. 438976
  39. 166375
  40. 884736

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