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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 2 · 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. 1.39³ =
  2. 2.95³ =
  3. 3.55³ =
  4. 4.86³ =
  5. 5.31³ =
  6. 6.67³ =
  7. 7.51³ =
  8. 8.27³ =
  9. 9.82³ =
  10. 10.73³ =
  11. 11.61³ =
  12. 12.35³ =
  13. 13.94³ =
  14. 14.31³ =
  15. 15.64³ =
  16. 16.36³ =
  17. 17.88³ =
  18. 18.71³ =
  19. 19.47³ =
  20. 20.68³ =
  21. 21.73³ =
  22. 22.62³ =
  23. 23.76³ =
  24. 24.16³ =
  25. 25.54³ =
  26. 26.31³ =
  27. 27.16³ =
  28. 28.31³ =
  29. 29.31³ =
  30. 30.96³ =
  31. 31.81³ =
  32. 32.17³ =
  33. 33.85³ =
  34. 34.21³ =
  35. 35.52³ =
  36. 36.74³ =
  37. 37.37³ =
  38. 38.29³ =
  39. 39.41³ =
  40. 40.27³ =

Answer key

  1. 59319
  2. 857375
  3. 166375
  4. 636056
  5. 29791
  6. 300763
  7. 132651
  8. 19683
  9. 551368
  10. 389017
  11. 226981
  12. 42875
  13. 830584
  14. 29791
  15. 262144
  16. 46656
  17. 681472
  18. 357911
  19. 103823
  20. 314432
  21. 389017
  22. 238328
  23. 438976
  24. 4096
  25. 157464
  26. 29791
  27. 4096
  28. 29791
  29. 29791
  30. 884736
  31. 531441
  32. 4913
  33. 614125
  34. 9261
  35. 140608
  36. 405224
  37. 50653
  38. 24389
  39. 68921
  40. 19683

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