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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 154 · 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. 1.84³ =
  2. 2.37³ =
  3. 3.51³ =
  4. 4.17³ =
  5. 5.15³ =
  6. 6.28³ =
  7. 7.84³ =
  8. 8.25³ =
  9. 9.38³ =
  10. 10.28³ =
  11. 11.13³ =
  12. 12.31³ =
  13. 13.34³ =
  14. 14.96³ =
  15. 15.35³ =
  16. 16.31³ =
  17. 17.83³ =
  18. 18.36³ =
  19. 19.36³ =
  20. 20.86³ =
  21. 21.31³ =
  22. 22.79³ =
  23. 23.21³ =
  24. 24.38³ =
  25. 25.14³ =
  26. 26.26³ =
  27. 27.79³ =
  28. 28.31³ =
  29. 29.35³ =
  30. 30.53³ =
  31. 31.24³ =
  32. 32.84³ =
  33. 33.21³ =
  34. 34.95³ =
  35. 35.69³ =
  36. 36.39³ =
  37. 37.19³ =
  38. 38.25³ =
  39. 39.14³ =
  40. 40.19³ =

Answer key

  1. 592704
  2. 50653
  3. 132651
  4. 4913
  5. 3375
  6. 21952
  7. 592704
  8. 15625
  9. 54872
  10. 21952
  11. 2197
  12. 29791
  13. 39304
  14. 884736
  15. 42875
  16. 29791
  17. 571787
  18. 46656
  19. 46656
  20. 636056
  21. 29791
  22. 493039
  23. 9261
  24. 54872
  25. 2744
  26. 17576
  27. 493039
  28. 29791
  29. 42875
  30. 148877
  31. 13824
  32. 592704
  33. 9261
  34. 857375
  35. 328509
  36. 59319
  37. 6859
  38. 15625
  39. 2744
  40. 6859

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