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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 100 · 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. 1.28³ =
  2. 2.54³ =
  3. 3.58³ =
  4. 4.39³ =
  5. 5.72³ =
  6. 6.43³ =
  7. 7.63³ =
  8. 8.59³ =
  9. 9.14³ =
  10. 10.21³ =
  11. 11.43³ =
  12. 12.34³ =
  13. 13.19³ =
  14. 14.75³ =
  15. 15.57³ =
  16. 16.61³ =
  17. 17.29³ =
  18. 18.81³ =
  19. 19.94³ =
  20. 20.62³ =
  21. 21.26³ =
  22. 22.99³ =
  23. 23.18³ =
  24. 24.43³ =
  25. 25.71³ =
  26. 26.89³ =
  27. 27.42³ =
  28. 28.71³ =
  29. 29.94³ =
  30. 30.84³ =
  31. 31.52³ =
  32. 32.58³ =
  33. 33.96³ =
  34. 34.28³ =
  35. 35.83³ =
  36. 36.14³ =
  37. 37.47³ =
  38. 38.32³ =
  39. 39.21³ =
  40. 40.86³ =

Answer key

  1. 21952
  2. 157464
  3. 195112
  4. 59319
  5. 373248
  6. 79507
  7. 250047
  8. 205379
  9. 2744
  10. 9261
  11. 79507
  12. 39304
  13. 6859
  14. 421875
  15. 185193
  16. 226981
  17. 24389
  18. 531441
  19. 830584
  20. 238328
  21. 17576
  22. 970299
  23. 5832
  24. 79507
  25. 357911
  26. 704969
  27. 74088
  28. 357911
  29. 830584
  30. 592704
  31. 140608
  32. 195112
  33. 884736
  34. 21952
  35. 571787
  36. 2744
  37. 103823
  38. 32768
  39. 9261
  40. 636056

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