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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 11 · 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. 1.64³ =
  2. 2.61³ =
  3. 3.23³ =
  4. 4.31³ =
  5. 5.85³ =
  6. 6.28³ =
  7. 7.27³ =
  8. 8.86³ =
  9. 9.17³ =
  10. 10.67³ =
  11. 11.61³ =
  12. 12.36³ =
  13. 13.17³ =
  14. 14.26³ =
  15. 15.32³ =
  16. 16.72³ =
  17. 17.19³ =
  18. 18.78³ =
  19. 19.99³ =
  20. 20.81³ =
  21. 21.24³ =
  22. 22.59³ =
  23. 23.81³ =
  24. 24.54³ =
  25. 25.69³ =
  26. 26.36³ =
  27. 27.96³ =
  28. 28.12³ =
  29. 29.64³ =
  30. 30.83³ =
  31. 31.37³ =
  32. 32.38³ =
  33. 33.38³ =
  34. 34.77³ =
  35. 35.65³ =
  36. 36.19³ =
  37. 37.49³ =
  38. 38.26³ =
  39. 39.46³ =
  40. 40.94³ =

Answer key

  1. 262144
  2. 226981
  3. 12167
  4. 29791
  5. 614125
  6. 21952
  7. 19683
  8. 636056
  9. 4913
  10. 300763
  11. 226981
  12. 46656
  13. 4913
  14. 17576
  15. 32768
  16. 373248
  17. 6859
  18. 474552
  19. 970299
  20. 531441
  21. 13824
  22. 205379
  23. 531441
  24. 157464
  25. 328509
  26. 46656
  27. 884736
  28. 1728
  29. 262144
  30. 571787
  31. 50653
  32. 54872
  33. 54872
  34. 456533
  35. 274625
  36. 6859
  37. 117649
  38. 17576
  39. 97336
  40. 830584

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