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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 447 · 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. 1.24³ =
  2. 2.56³ =
  3. 3.55³ =
  4. 4.45³ =
  5. 5.87³ =
  6. 6.61³ =
  7. 7.14³ =
  8. 8.57³ =
  9. 9.91³ =
  10. 10.39³ =
  11. 11.88³ =
  12. 12.93³ =
  13. 13.33³ =
  14. 14.37³ =
  15. 15.21³ =
  16. 16.81³ =
  17. 17.81³ =
  18. 18.81³ =
  19. 19.15³ =
  20. 20.39³ =
  21. 21.94³ =
  22. 22.32³ =
  23. 23.91³ =
  24. 24.23³ =
  25. 25.19³ =
  26. 26.41³ =
  27. 27.58³ =
  28. 28.54³ =
  29. 29.14³ =
  30. 30.12³ =
  31. 31.57³ =
  32. 32.79³ =
  33. 33.47³ =
  34. 34.46³ =
  35. 35.16³ =
  36. 36.61³ =
  37. 37.61³ =
  38. 38.96³ =
  39. 39.96³ =
  40. 40.31³ =

Answer key

  1. 13824
  2. 175616
  3. 166375
  4. 91125
  5. 658503
  6. 226981
  7. 2744
  8. 185193
  9. 753571
  10. 59319
  11. 681472
  12. 804357
  13. 35937
  14. 50653
  15. 9261
  16. 531441
  17. 531441
  18. 531441
  19. 3375
  20. 59319
  21. 830584
  22. 32768
  23. 753571
  24. 12167
  25. 6859
  26. 68921
  27. 195112
  28. 157464
  29. 2744
  30. 1728
  31. 185193
  32. 493039
  33. 103823
  34. 97336
  35. 4096
  36. 226981
  37. 226981
  38. 884736
  39. 884736
  40. 29791

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