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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 396 · 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. 1.12³ =
  2. 2.73³ =
  3. 3.47³ =
  4. 4.21³ =
  5. 5.59³ =
  6. 6.89³ =
  7. 7.62³ =
  8. 8.12³ =
  9. 9.16³ =
  10. 10.65³ =
  11. 11.28³ =
  12. 12.81³ =
  13. 13.22³ =
  14. 14.13³ =
  15. 15.44³ =
  16. 16.17³ =
  17. 17.19³ =
  18. 18.34³ =
  19. 19.72³ =
  20. 20.16³ =
  21. 21.96³ =
  22. 22.53³ =
  23. 23.45³ =
  24. 24.84³ =
  25. 25.83³ =
  26. 26.51³ =
  27. 27.94³ =
  28. 28.31³ =
  29. 29.81³ =
  30. 30.54³ =
  31. 31.36³ =
  32. 32.87³ =
  33. 33.71³ =
  34. 34.86³ =
  35. 35.96³ =
  36. 36.71³ =
  37. 37.14³ =
  38. 38.26³ =
  39. 39.62³ =
  40. 40.57³ =

Answer key

  1. 1728
  2. 389017
  3. 103823
  4. 9261
  5. 205379
  6. 704969
  7. 238328
  8. 1728
  9. 4096
  10. 274625
  11. 21952
  12. 531441
  13. 10648
  14. 2197
  15. 85184
  16. 4913
  17. 6859
  18. 39304
  19. 373248
  20. 4096
  21. 884736
  22. 148877
  23. 91125
  24. 592704
  25. 571787
  26. 132651
  27. 830584
  28. 29791
  29. 531441
  30. 157464
  31. 46656
  32. 658503
  33. 357911
  34. 636056
  35. 884736
  36. 357911
  37. 2744
  38. 17576
  39. 238328
  40. 185193

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