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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 641 · 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. 1.44³ =
  2. 2.52³ =
  3. 3.41³ =
  4. 4.93³ =
  5. 5.14³ =
  6. 6.72³ =
  7. 7.77³ =
  8. 8.48³ =
  9. 9.75³ =
  10. 10.99³ =
  11. 11.89³ =
  12. 12.21³ =
  13. 13.68³ =
  14. 14.39³ =
  15. 15.71³ =
  16. 16.84³ =
  17. 17.46³ =
  18. 18.22³ =
  19. 19.13³ =
  20. 20.77³ =
  21. 21.27³ =
  22. 22.54³ =
  23. 23.54³ =
  24. 24.33³ =
  25. 25.58³ =
  26. 26.81³ =
  27. 27.47³ =
  28. 28.26³ =
  29. 29.15³ =
  30. 30.66³ =
  31. 31.13³ =
  32. 32.93³ =
  33. 33.79³ =
  34. 34.51³ =
  35. 35.24³ =
  36. 36.93³ =
  37. 37.66³ =
  38. 38.14³ =
  39. 39.84³ =
  40. 40.66³ =

Answer key

  1. 85184
  2. 140608
  3. 68921
  4. 804357
  5. 2744
  6. 373248
  7. 456533
  8. 110592
  9. 421875
  10. 970299
  11. 704969
  12. 9261
  13. 314432
  14. 59319
  15. 357911
  16. 592704
  17. 97336
  18. 10648
  19. 2197
  20. 456533
  21. 19683
  22. 157464
  23. 157464
  24. 35937
  25. 195112
  26. 531441
  27. 103823
  28. 17576
  29. 3375
  30. 287496
  31. 2197
  32. 804357
  33. 493039
  34. 132651
  35. 13824
  36. 804357
  37. 287496
  38. 2744
  39. 592704
  40. 287496

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