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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 296 · 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. 1.85³ =
  2. 2.12³ =
  3. 3.29³ =
  4. 4.12³ =
  5. 5.36³ =
  6. 6.81³ =
  7. 7.56³ =
  8. 8.43³ =
  9. 9.41³ =
  10. 10.81³ =
  11. 11.89³ =
  12. 12.42³ =
  13. 13.52³ =
  14. 14.31³ =
  15. 15.91³ =
  16. 16.53³ =
  17. 17.14³ =
  18. 18.62³ =
  19. 19.16³ =
  20. 20.28³ =
  21. 21.83³ =
  22. 22.71³ =
  23. 23.88³ =
  24. 24.92³ =
  25. 25.89³ =
  26. 26.15³ =
  27. 27.18³ =
  28. 28.31³ =
  29. 29.29³ =
  30. 30.63³ =
  31. 31.77³ =
  32. 32.73³ =
  33. 33.12³ =
  34. 34.72³ =
  35. 35.14³ =
  36. 36.19³ =
  37. 37.21³ =
  38. 38.46³ =
  39. 39.22³ =
  40. 40.73³ =

Answer key

  1. 614125
  2. 1728
  3. 24389
  4. 1728
  5. 46656
  6. 531441
  7. 175616
  8. 79507
  9. 68921
  10. 531441
  11. 704969
  12. 74088
  13. 140608
  14. 29791
  15. 753571
  16. 148877
  17. 2744
  18. 238328
  19. 4096
  20. 21952
  21. 571787
  22. 357911
  23. 681472
  24. 778688
  25. 704969
  26. 3375
  27. 5832
  28. 29791
  29. 24389
  30. 250047
  31. 456533
  32. 389017
  33. 1728
  34. 373248
  35. 2744
  36. 6859
  37. 9261
  38. 97336
  39. 10648
  40. 389017

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