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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 326 · 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. 1.61³ =
  2. 2.13³ =
  3. 3.48³ =
  4. 4.51³ =
  5. 5.71³ =
  6. 6.21³ =
  7. 7.98³ =
  8. 8.99³ =
  9. 9.41³ =
  10. 10.51³ =
  11. 11.32³ =
  12. 12.67³ =
  13. 13.31³ =
  14. 14.75³ =
  15. 15.71³ =
  16. 16.14³ =
  17. 17.75³ =
  18. 18.21³ =
  19. 19.82³ =
  20. 20.63³ =
  21. 21.62³ =
  22. 22.36³ =
  23. 23.63³ =
  24. 24.83³ =
  25. 25.39³ =
  26. 26.35³ =
  27. 27.13³ =
  28. 28.61³ =
  29. 29.14³ =
  30. 30.94³ =
  31. 31.73³ =
  32. 32.33³ =
  33. 33.45³ =
  34. 34.25³ =
  35. 35.19³ =
  36. 36.48³ =
  37. 37.72³ =
  38. 38.37³ =
  39. 39.27³ =
  40. 40.72³ =

Answer key

  1. 226981
  2. 2197
  3. 110592
  4. 132651
  5. 357911
  6. 9261
  7. 941192
  8. 970299
  9. 68921
  10. 132651
  11. 32768
  12. 300763
  13. 29791
  14. 421875
  15. 357911
  16. 2744
  17. 421875
  18. 9261
  19. 551368
  20. 250047
  21. 238328
  22. 46656
  23. 250047
  24. 571787
  25. 59319
  26. 42875
  27. 2197
  28. 226981
  29. 2744
  30. 830584
  31. 389017
  32. 35937
  33. 91125
  34. 15625
  35. 6859
  36. 110592
  37. 373248
  38. 50653
  39. 19683
  40. 373248

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