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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 598 · 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. 1.31³ =
  2. 2.65³ =
  3. 3.25³ =
  4. 4.33³ =
  5. 5.32³ =
  6. 6.95³ =
  7. 7.19³ =
  8. 8.49³ =
  9. 9.53³ =
  10. 10.21³ =
  11. 11.17³ =
  12. 12.24³ =
  13. 13.62³ =
  14. 14.64³ =
  15. 15.45³ =
  16. 16.13³ =
  17. 17.29³ =
  18. 18.46³ =
  19. 19.36³ =
  20. 20.61³ =
  21. 21.24³ =
  22. 22.55³ =
  23. 23.24³ =
  24. 24.34³ =
  25. 25.17³ =
  26. 26.81³ =
  27. 27.42³ =
  28. 28.87³ =
  29. 29.51³ =
  30. 30.92³ =
  31. 31.32³ =
  32. 32.19³ =
  33. 33.23³ =
  34. 34.31³ =
  35. 35.51³ =
  36. 36.49³ =
  37. 37.23³ =
  38. 38.41³ =
  39. 39.89³ =
  40. 40.66³ =

Answer key

  1. 29791
  2. 274625
  3. 15625
  4. 35937
  5. 32768
  6. 857375
  7. 6859
  8. 117649
  9. 148877
  10. 9261
  11. 4913
  12. 13824
  13. 238328
  14. 262144
  15. 91125
  16. 2197
  17. 24389
  18. 97336
  19. 46656
  20. 226981
  21. 13824
  22. 166375
  23. 13824
  24. 39304
  25. 4913
  26. 531441
  27. 74088
  28. 658503
  29. 132651
  30. 778688
  31. 32768
  32. 6859
  33. 12167
  34. 29791
  35. 132651
  36. 117649
  37. 12167
  38. 68921
  39. 704969
  40. 287496

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