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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 872 · 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. 1.22³ =
  2. 2.24³ =
  3. 3.84³ =
  4. 4.17³ =
  5. 5.31³ =
  6. 6.31³ =
  7. 7.65³ =
  8. 8.14³ =
  9. 9.55³ =
  10. 10.47³ =
  11. 11.71³ =
  12. 12.16³ =
  13. 13.63³ =
  14. 14.48³ =
  15. 15.66³ =
  16. 16.76³ =
  17. 17.66³ =
  18. 18.24³ =
  19. 19.91³ =
  20. 20.17³ =
  21. 21.31³ =
  22. 22.62³ =
  23. 23.33³ =
  24. 24.21³ =
  25. 25.19³ =
  26. 26.92³ =
  27. 27.64³ =
  28. 28.61³ =
  29. 29.64³ =
  30. 30.79³ =
  31. 31.89³ =
  32. 32.67³ =
  33. 33.19³ =
  34. 34.82³ =
  35. 35.92³ =
  36. 36.14³ =
  37. 37.93³ =
  38. 38.48³ =
  39. 39.54³ =
  40. 40.18³ =

Answer key

  1. 10648
  2. 13824
  3. 592704
  4. 4913
  5. 29791
  6. 29791
  7. 274625
  8. 2744
  9. 166375
  10. 103823
  11. 357911
  12. 4096
  13. 250047
  14. 110592
  15. 287496
  16. 438976
  17. 287496
  18. 13824
  19. 753571
  20. 4913
  21. 29791
  22. 238328
  23. 35937
  24. 9261
  25. 6859
  26. 778688
  27. 262144
  28. 226981
  29. 262144
  30. 493039
  31. 704969
  32. 300763
  33. 6859
  34. 551368
  35. 778688
  36. 2744
  37. 804357
  38. 110592
  39. 157464
  40. 5832

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