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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 718 · 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. 1.35³ =
  2. 2.23³ =
  3. 3.13³ =
  4. 4.21³ =
  5. 5.13³ =
  6. 6.11³ =
  7. 7.62³ =
  8. 8.95³ =
  9. 9.15³ =
  10. 10.36³ =
  11. 11.37³ =
  12. 12.81³ =
  13. 13.68³ =
  14. 14.81³ =
  15. 15.23³ =
  16. 16.13³ =
  17. 17.79³ =
  18. 18.25³ =
  19. 19.76³ =
  20. 20.83³ =
  21. 21.28³ =
  22. 22.75³ =
  23. 23.77³ =
  24. 24.71³ =
  25. 25.25³ =
  26. 26.12³ =
  27. 27.48³ =
  28. 28.85³ =
  29. 29.49³ =
  30. 30.33³ =
  31. 31.75³ =
  32. 32.25³ =
  33. 33.97³ =
  34. 34.88³ =
  35. 35.76³ =
  36. 36.82³ =
  37. 37.75³ =
  38. 38.89³ =
  39. 39.47³ =
  40. 40.15³ =

Answer key

  1. 42875
  2. 12167
  3. 2197
  4. 9261
  5. 2197
  6. 1331
  7. 238328
  8. 857375
  9. 3375
  10. 46656
  11. 50653
  12. 531441
  13. 314432
  14. 531441
  15. 12167
  16. 2197
  17. 493039
  18. 15625
  19. 438976
  20. 571787
  21. 21952
  22. 421875
  23. 456533
  24. 357911
  25. 15625
  26. 1728
  27. 110592
  28. 614125
  29. 117649
  30. 35937
  31. 421875
  32. 15625
  33. 912673
  34. 681472
  35. 438976
  36. 551368
  37. 421875
  38. 704969
  39. 103823
  40. 3375

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