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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 713 · 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. 1.87³ =
  2. 2.31³ =
  3. 3.89³ =
  4. 4.31³ =
  5. 5.29³ =
  6. 6.33³ =
  7. 7.79³ =
  8. 8.89³ =
  9. 9.54³ =
  10. 10.13³ =
  11. 11.26³ =
  12. 12.31³ =
  13. 13.66³ =
  14. 14.21³ =
  15. 15.33³ =
  16. 16.87³ =
  17. 17.66³ =
  18. 18.26³ =
  19. 19.96³ =
  20. 20.33³ =
  21. 21.52³ =
  22. 22.24³ =
  23. 23.83³ =
  24. 24.81³ =
  25. 25.97³ =
  26. 26.41³ =
  27. 27.93³ =
  28. 28.72³ =
  29. 29.68³ =
  30. 30.91³ =
  31. 31.55³ =
  32. 32.41³ =
  33. 33.21³ =
  34. 34.61³ =
  35. 35.39³ =
  36. 36.68³ =
  37. 37.32³ =
  38. 38.48³ =
  39. 39.64³ =
  40. 40.45³ =

Answer key

  1. 658503
  2. 29791
  3. 704969
  4. 29791
  5. 24389
  6. 35937
  7. 493039
  8. 704969
  9. 157464
  10. 2197
  11. 17576
  12. 29791
  13. 287496
  14. 9261
  15. 35937
  16. 658503
  17. 287496
  18. 17576
  19. 884736
  20. 35937
  21. 140608
  22. 13824
  23. 571787
  24. 531441
  25. 912673
  26. 68921
  27. 804357
  28. 373248
  29. 314432
  30. 753571
  31. 166375
  32. 68921
  33. 9261
  34. 226981
  35. 59319
  36. 314432
  37. 32768
  38. 110592
  39. 262144
  40. 91125

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