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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 725 · 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. 1.98³ =
  2. 2.69³ =
  3. 3.17³ =
  4. 4.52³ =
  5. 5.18³ =
  6. 6.31³ =
  7. 7.61³ =
  8. 8.51³ =
  9. 9.37³ =
  10. 10.87³ =
  11. 11.28³ =
  12. 12.93³ =
  13. 13.81³ =
  14. 14.19³ =
  15. 15.81³ =
  16. 16.95³ =
  17. 17.48³ =
  18. 18.21³ =
  19. 19.31³ =
  20. 20.54³ =
  21. 21.83³ =
  22. 22.83³ =
  23. 23.72³ =
  24. 24.71³ =
  25. 25.19³ =
  26. 26.87³ =
  27. 27.57³ =
  28. 28.89³ =
  29. 29.84³ =
  30. 30.55³ =
  31. 31.56³ =
  32. 32.79³ =
  33. 33.87³ =
  34. 34.21³ =
  35. 35.39³ =
  36. 36.85³ =
  37. 37.39³ =
  38. 38.32³ =
  39. 39.11³ =
  40. 40.13³ =

Answer key

  1. 941192
  2. 328509
  3. 4913
  4. 140608
  5. 5832
  6. 29791
  7. 226981
  8. 132651
  9. 50653
  10. 658503
  11. 21952
  12. 804357
  13. 531441
  14. 6859
  15. 531441
  16. 857375
  17. 110592
  18. 9261
  19. 29791
  20. 157464
  21. 571787
  22. 571787
  23. 373248
  24. 357911
  25. 6859
  26. 658503
  27. 185193
  28. 704969
  29. 592704
  30. 166375
  31. 175616
  32. 493039
  33. 658503
  34. 9261
  35. 59319
  36. 614125
  37. 59319
  38. 32768
  39. 1331
  40. 2197

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