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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 783 · 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. 1.78³ =
  2. 2.81³ =
  3. 3.21³ =
  4. 4.58³ =
  5. 5.92³ =
  6. 6.64³ =
  7. 7.61³ =
  8. 8.95³ =
  9. 9.46³ =
  10. 10.61³ =
  11. 11.39³ =
  12. 12.68³ =
  13. 13.37³ =
  14. 14.81³ =
  15. 15.75³ =
  16. 16.39³ =
  17. 17.55³ =
  18. 18.26³ =
  19. 19.27³ =
  20. 20.35³ =
  21. 21.81³ =
  22. 22.25³ =
  23. 23.59³ =
  24. 24.21³ =
  25. 25.61³ =
  26. 26.91³ =
  27. 27.61³ =
  28. 28.34³ =
  29. 29.92³ =
  30. 30.75³ =
  31. 31.91³ =
  32. 32.99³ =
  33. 33.57³ =
  34. 34.21³ =
  35. 35.68³ =
  36. 36.43³ =
  37. 37.13³ =
  38. 38.33³ =
  39. 39.67³ =
  40. 40.31³ =

Answer key

  1. 474552
  2. 531441
  3. 9261
  4. 195112
  5. 778688
  6. 262144
  7. 226981
  8. 857375
  9. 97336
  10. 226981
  11. 59319
  12. 314432
  13. 50653
  14. 531441
  15. 421875
  16. 59319
  17. 166375
  18. 17576
  19. 19683
  20. 42875
  21. 531441
  22. 15625
  23. 205379
  24. 9261
  25. 226981
  26. 753571
  27. 226981
  28. 39304
  29. 778688
  30. 421875
  31. 753571
  32. 970299
  33. 185193
  34. 9261
  35. 314432
  36. 79507
  37. 2197
  38. 35937
  39. 300763
  40. 29791

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