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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 557 · 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. 1.96³ =
  2. 2.34³ =
  3. 3.42³ =
  4. 4.52³ =
  5. 5.32³ =
  6. 6.98³ =
  7. 7.28³ =
  8. 8.81³ =
  9. 9.38³ =
  10. 10.75³ =
  11. 11.23³ =
  12. 12.21³ =
  13. 13.97³ =
  14. 14.72³ =
  15. 15.46³ =
  16. 16.17³ =
  17. 17.34³ =
  18. 18.92³ =
  19. 19.78³ =
  20. 20.21³ =
  21. 21.21³ =
  22. 22.22³ =
  23. 23.75³ =
  24. 24.62³ =
  25. 25.12³ =
  26. 26.62³ =
  27. 27.47³ =
  28. 28.76³ =
  29. 29.71³ =
  30. 30.48³ =
  31. 31.89³ =
  32. 32.68³ =
  33. 33.99³ =
  34. 34.61³ =
  35. 35.18³ =
  36. 36.71³ =
  37. 37.28³ =
  38. 38.27³ =
  39. 39.75³ =
  40. 40.98³ =

Answer key

  1. 884736
  2. 39304
  3. 74088
  4. 140608
  5. 32768
  6. 941192
  7. 21952
  8. 531441
  9. 54872
  10. 421875
  11. 12167
  12. 9261
  13. 912673
  14. 373248
  15. 97336
  16. 4913
  17. 39304
  18. 778688
  19. 474552
  20. 9261
  21. 9261
  22. 10648
  23. 421875
  24. 238328
  25. 1728
  26. 238328
  27. 103823
  28. 438976
  29. 357911
  30. 110592
  31. 704969
  32. 314432
  33. 970299
  34. 226981
  35. 5832
  36. 357911
  37. 21952
  38. 19683
  39. 421875
  40. 941192

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