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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 971 · 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. 2.62³ =
  3. 3.81³ =
  4. 4.39³ =
  5. 5.27³ =
  6. 6.93³ =
  7. 7.61³ =
  8. 8.12³ =
  9. 9.79³ =
  10. 10.85³ =
  11. 11.57³ =
  12. 12.58³ =
  13. 13.21³ =
  14. 14.71³ =
  15. 15.71³ =
  16. 16.72³ =
  17. 17.14³ =
  18. 18.46³ =
  19. 19.82³ =
  20. 20.52³ =
  21. 21.94³ =
  22. 22.53³ =
  23. 23.41³ =
  24. 24.85³ =
  25. 25.14³ =
  26. 26.11³ =
  27. 27.65³ =
  28. 28.46³ =
  29. 29.86³ =
  30. 30.41³ =
  31. 31.69³ =
  32. 32.95³ =
  33. 33.65³ =
  34. 34.35³ =
  35. 35.76³ =
  36. 36.95³ =
  37. 37.44³ =
  38. 38.21³ =
  39. 39.23³ =
  40. 40.22³ =

Answer key

  1. 166375
  2. 238328
  3. 531441
  4. 59319
  5. 19683
  6. 804357
  7. 226981
  8. 1728
  9. 493039
  10. 614125
  11. 185193
  12. 195112
  13. 9261
  14. 357911
  15. 357911
  16. 373248
  17. 2744
  18. 97336
  19. 551368
  20. 140608
  21. 830584
  22. 148877
  23. 68921
  24. 614125
  25. 2744
  26. 1331
  27. 274625
  28. 97336
  29. 636056
  30. 68921
  31. 328509
  32. 857375
  33. 274625
  34. 42875
  35. 438976
  36. 857375
  37. 85184
  38. 9261
  39. 12167
  40. 10648

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