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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 961 · 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. 1.42³ =
  2. 2.64³ =
  3. 3.29³ =
  4. 4.16³ =
  5. 5.12³ =
  6. 6.81³ =
  7. 7.31³ =
  8. 8.34³ =
  9. 9.49³ =
  10. 10.72³ =
  11. 11.17³ =
  12. 12.17³ =
  13. 13.63³ =
  14. 14.33³ =
  15. 15.37³ =
  16. 16.41³ =
  17. 17.19³ =
  18. 18.51³ =
  19. 19.13³ =
  20. 20.88³ =
  21. 21.82³ =
  22. 22.18³ =
  23. 23.65³ =
  24. 24.55³ =
  25. 25.77³ =
  26. 26.18³ =
  27. 27.24³ =
  28. 28.22³ =
  29. 29.63³ =
  30. 30.77³ =
  31. 31.91³ =
  32. 32.23³ =
  33. 33.14³ =
  34. 34.39³ =
  35. 35.79³ =
  36. 36.23³ =
  37. 37.31³ =
  38. 38.54³ =
  39. 39.31³ =
  40. 40.44³ =

Answer key

  1. 74088
  2. 262144
  3. 24389
  4. 4096
  5. 1728
  6. 531441
  7. 29791
  8. 39304
  9. 117649
  10. 373248
  11. 4913
  12. 4913
  13. 250047
  14. 35937
  15. 50653
  16. 68921
  17. 6859
  18. 132651
  19. 2197
  20. 681472
  21. 551368
  22. 5832
  23. 274625
  24. 166375
  25. 456533
  26. 5832
  27. 13824
  28. 10648
  29. 250047
  30. 456533
  31. 753571
  32. 12167
  33. 2744
  34. 59319
  35. 493039
  36. 12167
  37. 29791
  38. 157464
  39. 29791
  40. 85184

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