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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 790 · 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. 1.55³ =
  2. 2.73³ =
  3. 3.28³ =
  4. 4.39³ =
  5. 5.87³ =
  6. 6.79³ =
  7. 7.94³ =
  8. 8.54³ =
  9. 9.83³ =
  10. 10.76³ =
  11. 11.52³ =
  12. 12.51³ =
  13. 13.89³ =
  14. 14.37³ =
  15. 15.97³ =
  16. 16.21³ =
  17. 17.15³ =
  18. 18.34³ =
  19. 19.19³ =
  20. 20.42³ =
  21. 21.17³ =
  22. 22.48³ =
  23. 23.69³ =
  24. 24.71³ =
  25. 25.49³ =
  26. 26.28³ =
  27. 27.52³ =
  28. 28.51³ =
  29. 29.16³ =
  30. 30.32³ =
  31. 31.25³ =
  32. 32.15³ =
  33. 33.52³ =
  34. 34.86³ =
  35. 35.28³ =
  36. 36.89³ =
  37. 37.85³ =
  38. 38.32³ =
  39. 39.21³ =
  40. 40.89³ =

Answer key

  1. 166375
  2. 389017
  3. 21952
  4. 59319
  5. 658503
  6. 493039
  7. 830584
  8. 157464
  9. 571787
  10. 438976
  11. 140608
  12. 132651
  13. 704969
  14. 50653
  15. 912673
  16. 9261
  17. 3375
  18. 39304
  19. 6859
  20. 74088
  21. 4913
  22. 110592
  23. 328509
  24. 357911
  25. 117649
  26. 21952
  27. 140608
  28. 132651
  29. 4096
  30. 32768
  31. 15625
  32. 3375
  33. 140608
  34. 636056
  35. 21952
  36. 704969
  37. 614125
  38. 32768
  39. 9261
  40. 704969

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