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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 893 · 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. 1.86³ =
  2. 2.47³ =
  3. 3.73³ =
  4. 4.22³ =
  5. 5.75³ =
  6. 6.75³ =
  7. 7.41³ =
  8. 8.24³ =
  9. 9.35³ =
  10. 10.49³ =
  11. 11.72³ =
  12. 12.44³ =
  13. 13.78³ =
  14. 14.29³ =
  15. 15.71³ =
  16. 16.85³ =
  17. 17.41³ =
  18. 18.17³ =
  19. 19.14³ =
  20. 20.33³ =
  21. 21.23³ =
  22. 22.34³ =
  23. 23.97³ =
  24. 24.81³ =
  25. 25.68³ =
  26. 26.71³ =
  27. 27.83³ =
  28. 28.15³ =
  29. 29.13³ =
  30. 30.72³ =
  31. 31.36³ =
  32. 32.32³ =
  33. 33.55³ =
  34. 34.21³ =
  35. 35.25³ =
  36. 36.64³ =
  37. 37.59³ =
  38. 38.26³ =
  39. 39.66³ =
  40. 40.68³ =

Answer key

  1. 636056
  2. 103823
  3. 389017
  4. 10648
  5. 421875
  6. 421875
  7. 68921
  8. 13824
  9. 42875
  10. 117649
  11. 373248
  12. 85184
  13. 474552
  14. 24389
  15. 357911
  16. 614125
  17. 68921
  18. 4913
  19. 2744
  20. 35937
  21. 12167
  22. 39304
  23. 912673
  24. 531441
  25. 314432
  26. 357911
  27. 571787
  28. 3375
  29. 2197
  30. 373248
  31. 46656
  32. 32768
  33. 166375
  34. 9261
  35. 15625
  36. 262144
  37. 205379
  38. 17576
  39. 287496
  40. 314432

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