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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 915 · 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. 1.23³ =
  2. 2.89³ =
  3. 3.32³ =
  4. 4.28³ =
  5. 5.31³ =
  6. 6.29³ =
  7. 7.69³ =
  8. 8.88³ =
  9. 9.81³ =
  10. 10.81³ =
  11. 11.24³ =
  12. 12.13³ =
  13. 13.54³ =
  14. 14.13³ =
  15. 15.37³ =
  16. 16.18³ =
  17. 17.61³ =
  18. 18.41³ =
  19. 19.12³ =
  20. 20.21³ =
  21. 21.15³ =
  22. 22.81³ =
  23. 23.69³ =
  24. 24.81³ =
  25. 25.72³ =
  26. 26.89³ =
  27. 27.37³ =
  28. 28.59³ =
  29. 29.81³ =
  30. 30.71³ =
  31. 31.78³ =
  32. 32.11³ =
  33. 33.52³ =
  34. 34.12³ =
  35. 35.71³ =
  36. 36.17³ =
  37. 37.95³ =
  38. 38.81³ =
  39. 39.28³ =
  40. 40.58³ =

Answer key

  1. 12167
  2. 704969
  3. 32768
  4. 21952
  5. 29791
  6. 24389
  7. 328509
  8. 681472
  9. 531441
  10. 531441
  11. 13824
  12. 2197
  13. 157464
  14. 2197
  15. 50653
  16. 5832
  17. 226981
  18. 68921
  19. 1728
  20. 9261
  21. 3375
  22. 531441
  23. 328509
  24. 531441
  25. 373248
  26. 704969
  27. 50653
  28. 205379
  29. 531441
  30. 357911
  31. 474552
  32. 1331
  33. 140608
  34. 1728
  35. 357911
  36. 4913
  37. 857375
  38. 531441
  39. 21952
  40. 195112

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