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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 750 · 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. 2.61³ =
  3. 3.97³ =
  4. 4.66³ =
  5. 5.36³ =
  6. 6.94³ =
  7. 7.38³ =
  8. 8.91³ =
  9. 9.41³ =
  10. 10.97³ =
  11. 11.21³ =
  12. 12.44³ =
  13. 13.31³ =
  14. 14.38³ =
  15. 15.87³ =
  16. 16.81³ =
  17. 17.55³ =
  18. 18.73³ =
  19. 19.14³ =
  20. 20.78³ =
  21. 21.16³ =
  22. 22.81³ =
  23. 23.55³ =
  24. 24.25³ =
  25. 25.47³ =
  26. 26.69³ =
  27. 27.49³ =
  28. 28.37³ =
  29. 29.39³ =
  30. 30.61³ =
  31. 31.94³ =
  32. 32.13³ =
  33. 33.63³ =
  34. 34.36³ =
  35. 35.63³ =
  36. 36.73³ =
  37. 37.77³ =
  38. 38.53³ =
  39. 39.67³ =
  40. 40.21³ =

Answer key

  1. 29791
  2. 226981
  3. 912673
  4. 287496
  5. 46656
  6. 830584
  7. 54872
  8. 753571
  9. 68921
  10. 912673
  11. 9261
  12. 85184
  13. 29791
  14. 54872
  15. 658503
  16. 531441
  17. 166375
  18. 389017
  19. 2744
  20. 474552
  21. 4096
  22. 531441
  23. 166375
  24. 15625
  25. 103823
  26. 328509
  27. 117649
  28. 50653
  29. 59319
  30. 226981
  31. 830584
  32. 2197
  33. 250047
  34. 46656
  35. 250047
  36. 389017
  37. 456533
  38. 148877
  39. 300763
  40. 9261

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