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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 791 · 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. 1.81³ =
  2. 2.98³ =
  3. 3.61³ =
  4. 4.19³ =
  5. 5.72³ =
  6. 6.27³ =
  7. 7.51³ =
  8. 8.82³ =
  9. 9.63³ =
  10. 10.67³ =
  11. 11.85³ =
  12. 12.26³ =
  13. 13.39³ =
  14. 14.36³ =
  15. 15.44³ =
  16. 16.37³ =
  17. 17.32³ =
  18. 18.97³ =
  19. 19.23³ =
  20. 20.62³ =
  21. 21.31³ =
  22. 22.82³ =
  23. 23.72³ =
  24. 24.89³ =
  25. 25.68³ =
  26. 26.84³ =
  27. 27.47³ =
  28. 28.91³ =
  29. 29.82³ =
  30. 30.75³ =
  31. 31.36³ =
  32. 32.57³ =
  33. 33.79³ =
  34. 34.74³ =
  35. 35.48³ =
  36. 36.75³ =
  37. 37.35³ =
  38. 38.33³ =
  39. 39.85³ =
  40. 40.71³ =

Answer key

  1. 531441
  2. 941192
  3. 226981
  4. 6859
  5. 373248
  6. 19683
  7. 132651
  8. 551368
  9. 250047
  10. 300763
  11. 614125
  12. 17576
  13. 59319
  14. 46656
  15. 85184
  16. 50653
  17. 32768
  18. 912673
  19. 12167
  20. 238328
  21. 29791
  22. 551368
  23. 373248
  24. 704969
  25. 314432
  26. 592704
  27. 103823
  28. 753571
  29. 551368
  30. 421875
  31. 46656
  32. 185193
  33. 493039
  34. 405224
  35. 110592
  36. 421875
  37. 42875
  38. 35937
  39. 614125
  40. 357911

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