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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 190 · 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. 1.19³ =
  2. 2.39³ =
  3. 3.71³ =
  4. 4.48³ =
  5. 5.66³ =
  6. 6.16³ =
  7. 7.22³ =
  8. 8.54³ =
  9. 9.39³ =
  10. 10.79³ =
  11. 11.64³ =
  12. 12.16³ =
  13. 13.19³ =
  14. 14.22³ =
  15. 15.43³ =
  16. 16.95³ =
  17. 17.94³ =
  18. 18.52³ =
  19. 19.39³ =
  20. 20.86³ =
  21. 21.94³ =
  22. 22.44³ =
  23. 23.42³ =
  24. 24.27³ =
  25. 25.55³ =
  26. 26.17³ =
  27. 27.46³ =
  28. 28.12³ =
  29. 29.74³ =
  30. 30.32³ =
  31. 31.12³ =
  32. 32.21³ =
  33. 33.88³ =
  34. 34.61³ =
  35. 35.89³ =
  36. 36.89³ =
  37. 37.84³ =
  38. 38.87³ =
  39. 39.51³ =
  40. 40.79³ =

Answer key

  1. 6859
  2. 59319
  3. 357911
  4. 110592
  5. 287496
  6. 4096
  7. 10648
  8. 157464
  9. 59319
  10. 493039
  11. 262144
  12. 4096
  13. 6859
  14. 10648
  15. 79507
  16. 857375
  17. 830584
  18. 140608
  19. 59319
  20. 636056
  21. 830584
  22. 85184
  23. 74088
  24. 19683
  25. 166375
  26. 4913
  27. 97336
  28. 1728
  29. 405224
  30. 32768
  31. 1728
  32. 9261
  33. 681472
  34. 226981
  35. 704969
  36. 704969
  37. 592704
  38. 658503
  39. 132651
  40. 493039

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