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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 845 · 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. 1.74³ =
  2. 2.28³ =
  3. 3.71³ =
  4. 4.98³ =
  5. 5.87³ =
  6. 6.16³ =
  7. 7.23³ =
  8. 8.91³ =
  9. 9.17³ =
  10. 10.91³ =
  11. 11.84³ =
  12. 12.38³ =
  13. 13.24³ =
  14. 14.33³ =
  15. 15.19³ =
  16. 16.37³ =
  17. 17.43³ =
  18. 18.86³ =
  19. 19.16³ =
  20. 20.22³ =
  21. 21.49³ =
  22. 22.99³ =
  23. 23.81³ =
  24. 24.92³ =
  25. 25.51³ =
  26. 26.81³ =
  27. 27.61³ =
  28. 28.42³ =
  29. 29.33³ =
  30. 30.71³ =
  31. 31.41³ =
  32. 32.33³ =
  33. 33.43³ =
  34. 34.47³ =
  35. 35.31³ =
  36. 36.21³ =
  37. 37.34³ =
  38. 38.48³ =
  39. 39.27³ =
  40. 40.47³ =

Answer key

  1. 405224
  2. 21952
  3. 357911
  4. 941192
  5. 658503
  6. 4096
  7. 12167
  8. 753571
  9. 4913
  10. 753571
  11. 592704
  12. 54872
  13. 13824
  14. 35937
  15. 6859
  16. 50653
  17. 79507
  18. 636056
  19. 4096
  20. 10648
  21. 117649
  22. 970299
  23. 531441
  24. 778688
  25. 132651
  26. 531441
  27. 226981
  28. 74088
  29. 35937
  30. 357911
  31. 68921
  32. 35937
  33. 79507
  34. 103823
  35. 29791
  36. 9261
  37. 39304
  38. 110592
  39. 19683
  40. 103823

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