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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 766 · 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. 1.87³ =
  2. 2.17³ =
  3. 3.39³ =
  4. 4.64³ =
  5. 5.86³ =
  6. 6.36³ =
  7. 7.18³ =
  8. 8.49³ =
  9. 9.59³ =
  10. 10.45³ =
  11. 11.31³ =
  12. 12.16³ =
  13. 13.89³ =
  14. 14.21³ =
  15. 15.88³ =
  16. 16.15³ =
  17. 17.31³ =
  18. 18.19³ =
  19. 19.67³ =
  20. 20.76³ =
  21. 21.79³ =
  22. 22.83³ =
  23. 23.62³ =
  24. 24.16³ =
  25. 25.51³ =
  26. 26.46³ =
  27. 27.71³ =
  28. 28.83³ =
  29. 29.81³ =
  30. 30.45³ =
  31. 31.33³ =
  32. 32.68³ =
  33. 33.49³ =
  34. 34.49³ =
  35. 35.15³ =
  36. 36.95³ =
  37. 37.41³ =
  38. 38.27³ =
  39. 39.58³ =
  40. 40.55³ =

Answer key

  1. 658503
  2. 4913
  3. 59319
  4. 262144
  5. 636056
  6. 46656
  7. 5832
  8. 117649
  9. 205379
  10. 91125
  11. 29791
  12. 4096
  13. 704969
  14. 9261
  15. 681472
  16. 3375
  17. 29791
  18. 6859
  19. 300763
  20. 438976
  21. 493039
  22. 571787
  23. 238328
  24. 4096
  25. 132651
  26. 97336
  27. 357911
  28. 571787
  29. 531441
  30. 91125
  31. 35937
  32. 314432
  33. 117649
  34. 117649
  35. 3375
  36. 857375
  37. 68921
  38. 19683
  39. 195112
  40. 166375

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