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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 942 · 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. 1.65³ =
  2. 2.52³ =
  3. 3.21³ =
  4. 4.36³ =
  5. 5.66³ =
  6. 6.13³ =
  7. 7.39³ =
  8. 8.61³ =
  9. 9.79³ =
  10. 10.49³ =
  11. 11.61³ =
  12. 12.49³ =
  13. 13.71³ =
  14. 14.41³ =
  15. 15.46³ =
  16. 16.14³ =
  17. 17.82³ =
  18. 18.82³ =
  19. 19.28³ =
  20. 20.23³ =
  21. 21.41³ =
  22. 22.95³ =
  23. 23.32³ =
  24. 24.35³ =
  25. 25.84³ =
  26. 26.65³ =
  27. 27.64³ =
  28. 28.17³ =
  29. 29.68³ =
  30. 30.56³ =
  31. 31.95³ =
  32. 32.99³ =
  33. 33.33³ =
  34. 34.85³ =
  35. 35.75³ =
  36. 36.13³ =
  37. 37.97³ =
  38. 38.22³ =
  39. 39.26³ =
  40. 40.68³ =

Answer key

  1. 274625
  2. 140608
  3. 9261
  4. 46656
  5. 287496
  6. 2197
  7. 59319
  8. 226981
  9. 493039
  10. 117649
  11. 226981
  12. 117649
  13. 357911
  14. 68921
  15. 97336
  16. 2744
  17. 551368
  18. 551368
  19. 21952
  20. 12167
  21. 68921
  22. 857375
  23. 32768
  24. 42875
  25. 592704
  26. 274625
  27. 262144
  28. 4913
  29. 314432
  30. 175616
  31. 857375
  32. 970299
  33. 35937
  34. 614125
  35. 421875
  36. 2197
  37. 912673
  38. 10648
  39. 17576
  40. 314432

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