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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 853 · 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. 1.76³ =
  2. 2.66³ =
  3. 3.89³ =
  4. 4.71³ =
  5. 5.71³ =
  6. 6.97³ =
  7. 7.63³ =
  8. 8.16³ =
  9. 9.44³ =
  10. 10.99³ =
  11. 11.38³ =
  12. 12.64³ =
  13. 13.21³ =
  14. 14.81³ =
  15. 15.15³ =
  16. 16.64³ =
  17. 17.92³ =
  18. 18.55³ =
  19. 19.33³ =
  20. 20.11³ =
  21. 21.21³ =
  22. 22.59³ =
  23. 23.33³ =
  24. 24.26³ =
  25. 25.21³ =
  26. 26.51³ =
  27. 27.75³ =
  28. 28.33³ =
  29. 29.86³ =
  30. 30.75³ =
  31. 31.43³ =
  32. 32.95³ =
  33. 33.27³ =
  34. 34.71³ =
  35. 35.51³ =
  36. 36.87³ =
  37. 37.16³ =
  38. 38.79³ =
  39. 39.72³ =
  40. 40.87³ =

Answer key

  1. 438976
  2. 287496
  3. 704969
  4. 357911
  5. 357911
  6. 912673
  7. 250047
  8. 4096
  9. 85184
  10. 970299
  11. 54872
  12. 262144
  13. 9261
  14. 531441
  15. 3375
  16. 262144
  17. 778688
  18. 166375
  19. 35937
  20. 1331
  21. 9261
  22. 205379
  23. 35937
  24. 17576
  25. 9261
  26. 132651
  27. 421875
  28. 35937
  29. 636056
  30. 421875
  31. 79507
  32. 857375
  33. 19683
  34. 357911
  35. 132651
  36. 658503
  37. 4096
  38. 493039
  39. 373248
  40. 658503

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