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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 408 · 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. 1.16³ =
  2. 2.79³ =
  3. 3.26³ =
  4. 4.21³ =
  5. 5.47³ =
  6. 6.91³ =
  7. 7.16³ =
  8. 8.89³ =
  9. 9.89³ =
  10. 10.61³ =
  11. 11.35³ =
  12. 12.71³ =
  13. 13.98³ =
  14. 14.87³ =
  15. 15.97³ =
  16. 16.94³ =
  17. 17.71³ =
  18. 18.34³ =
  19. 19.21³ =
  20. 20.54³ =
  21. 21.32³ =
  22. 22.72³ =
  23. 23.28³ =
  24. 24.87³ =
  25. 25.66³ =
  26. 26.11³ =
  27. 27.75³ =
  28. 28.49³ =
  29. 29.39³ =
  30. 30.58³ =
  31. 31.46³ =
  32. 32.81³ =
  33. 33.52³ =
  34. 34.52³ =
  35. 35.24³ =
  36. 36.97³ =
  37. 37.69³ =
  38. 38.21³ =
  39. 39.89³ =
  40. 40.83³ =

Answer key

  1. 4096
  2. 493039
  3. 17576
  4. 9261
  5. 103823
  6. 753571
  7. 4096
  8. 704969
  9. 704969
  10. 226981
  11. 42875
  12. 357911
  13. 941192
  14. 658503
  15. 912673
  16. 830584
  17. 357911
  18. 39304
  19. 9261
  20. 157464
  21. 32768
  22. 373248
  23. 21952
  24. 658503
  25. 287496
  26. 1331
  27. 421875
  28. 117649
  29. 59319
  30. 195112
  31. 97336
  32. 531441
  33. 140608
  34. 140608
  35. 13824
  36. 912673
  37. 328509
  38. 9261
  39. 704969
  40. 571787

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