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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 168 · 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. 1.75³ =
  2. 2.94³ =
  3. 3.83³ =
  4. 4.21³ =
  5. 5.95³ =
  6. 6.51³ =
  7. 7.23³ =
  8. 8.48³ =
  9. 9.93³ =
  10. 10.49³ =
  11. 11.58³ =
  12. 12.39³ =
  13. 13.42³ =
  14. 14.77³ =
  15. 15.19³ =
  16. 16.48³ =
  17. 17.83³ =
  18. 18.11³ =
  19. 19.81³ =
  20. 20.61³ =
  21. 21.14³ =
  22. 22.71³ =
  23. 23.41³ =
  24. 24.72³ =
  25. 25.99³ =
  26. 26.84³ =
  27. 27.82³ =
  28. 28.27³ =
  29. 29.34³ =
  30. 30.33³ =
  31. 31.66³ =
  32. 32.95³ =
  33. 33.85³ =
  34. 34.37³ =
  35. 35.84³ =
  36. 36.52³ =
  37. 37.28³ =
  38. 38.89³ =
  39. 39.54³ =
  40. 40.84³ =

Answer key

  1. 421875
  2. 830584
  3. 571787
  4. 9261
  5. 857375
  6. 132651
  7. 12167
  8. 110592
  9. 804357
  10. 117649
  11. 195112
  12. 59319
  13. 74088
  14. 456533
  15. 6859
  16. 110592
  17. 571787
  18. 1331
  19. 531441
  20. 226981
  21. 2744
  22. 357911
  23. 68921
  24. 373248
  25. 970299
  26. 592704
  27. 551368
  28. 19683
  29. 39304
  30. 35937
  31. 287496
  32. 857375
  33. 614125
  34. 50653
  35. 592704
  36. 140608
  37. 21952
  38. 704969
  39. 157464
  40. 592704

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