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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 982 · 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. 2.46³ =
  3. 3.18³ =
  4. 4.36³ =
  5. 5.27³ =
  6. 6.95³ =
  7. 7.22³ =
  8. 8.24³ =
  9. 9.53³ =
  10. 10.84³ =
  11. 11.66³ =
  12. 12.75³ =
  13. 13.24³ =
  14. 14.44³ =
  15. 15.83³ =
  16. 16.93³ =
  17. 17.92³ =
  18. 18.56³ =
  19. 19.71³ =
  20. 20.41³ =
  21. 21.95³ =
  22. 22.33³ =
  23. 23.93³ =
  24. 24.63³ =
  25. 25.19³ =
  26. 26.68³ =
  27. 27.92³ =
  28. 28.43³ =
  29. 29.91³ =
  30. 30.36³ =
  31. 31.18³ =
  32. 32.93³ =
  33. 33.81³ =
  34. 34.28³ =
  35. 35.75³ =
  36. 36.86³ =
  37. 37.36³ =
  38. 38.67³ =
  39. 39.34³ =
  40. 40.71³ =

Answer key

  1. 226981
  2. 97336
  3. 5832
  4. 46656
  5. 19683
  6. 857375
  7. 10648
  8. 13824
  9. 148877
  10. 592704
  11. 287496
  12. 421875
  13. 13824
  14. 85184
  15. 571787
  16. 804357
  17. 778688
  18. 175616
  19. 357911
  20. 68921
  21. 857375
  22. 35937
  23. 804357
  24. 250047
  25. 6859
  26. 314432
  27. 778688
  28. 79507
  29. 753571
  30. 46656
  31. 5832
  32. 804357
  33. 531441
  34. 21952
  35. 421875
  36. 636056
  37. 46656
  38. 300763
  39. 39304
  40. 357911

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