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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 184 · 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. 1.67³ =
  2. 2.91³ =
  3. 3.93³ =
  4. 4.62³ =
  5. 5.31³ =
  6. 6.93³ =
  7. 7.65³ =
  8. 8.35³ =
  9. 9.13³ =
  10. 10.42³ =
  11. 11.54³ =
  12. 12.14³ =
  13. 13.38³ =
  14. 14.21³ =
  15. 15.47³ =
  16. 16.26³ =
  17. 17.21³ =
  18. 18.55³ =
  19. 19.43³ =
  20. 20.35³ =
  21. 21.29³ =
  22. 22.77³ =
  23. 23.61³ =
  24. 24.37³ =
  25. 25.51³ =
  26. 26.95³ =
  27. 27.81³ =
  28. 28.22³ =
  29. 29.95³ =
  30. 30.51³ =
  31. 31.69³ =
  32. 32.52³ =
  33. 33.32³ =
  34. 34.49³ =
  35. 35.55³ =
  36. 36.62³ =
  37. 37.54³ =
  38. 38.77³ =
  39. 39.71³ =
  40. 40.13³ =

Answer key

  1. 300763
  2. 753571
  3. 804357
  4. 238328
  5. 29791
  6. 804357
  7. 274625
  8. 42875
  9. 2197
  10. 74088
  11. 157464
  12. 2744
  13. 54872
  14. 9261
  15. 103823
  16. 17576
  17. 9261
  18. 166375
  19. 79507
  20. 42875
  21. 24389
  22. 456533
  23. 226981
  24. 50653
  25. 132651
  26. 857375
  27. 531441
  28. 10648
  29. 857375
  30. 132651
  31. 328509
  32. 140608
  33. 32768
  34. 117649
  35. 166375
  36. 238328
  37. 157464
  38. 456533
  39. 357911
  40. 2197

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