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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 256 · 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. 1.62³ =
  2. 2.89³ =
  3. 3.31³ =
  4. 4.84³ =
  5. 5.61³ =
  6. 6.14³ =
  7. 7.34³ =
  8. 8.71³ =
  9. 9.61³ =
  10. 10.43³ =
  11. 11.32³ =
  12. 12.78³ =
  13. 13.66³ =
  14. 14.56³ =
  15. 15.56³ =
  16. 16.93³ =
  17. 17.88³ =
  18. 18.95³ =
  19. 19.66³ =
  20. 20.49³ =
  21. 21.51³ =
  22. 22.76³ =
  23. 23.62³ =
  24. 24.91³ =
  25. 25.87³ =
  26. 26.27³ =
  27. 27.19³ =
  28. 28.93³ =
  29. 29.56³ =
  30. 30.24³ =
  31. 31.16³ =
  32. 32.41³ =
  33. 33.41³ =
  34. 34.19³ =
  35. 35.39³ =
  36. 36.65³ =
  37. 37.24³ =
  38. 38.63³ =
  39. 39.29³ =
  40. 40.92³ =

Answer key

  1. 238328
  2. 704969
  3. 29791
  4. 592704
  5. 226981
  6. 2744
  7. 39304
  8. 357911
  9. 226981
  10. 79507
  11. 32768
  12. 474552
  13. 287496
  14. 175616
  15. 175616
  16. 804357
  17. 681472
  18. 857375
  19. 287496
  20. 117649
  21. 132651
  22. 438976
  23. 238328
  24. 753571
  25. 658503
  26. 19683
  27. 6859
  28. 804357
  29. 175616
  30. 13824
  31. 4096
  32. 68921
  33. 68921
  34. 6859
  35. 59319
  36. 274625
  37. 13824
  38. 250047
  39. 24389
  40. 778688

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