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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 203 · 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. 1.41³ =
  2. 2.51³ =
  3. 3.16³ =
  4. 4.39³ =
  5. 5.66³ =
  6. 6.84³ =
  7. 7.27³ =
  8. 8.35³ =
  9. 9.99³ =
  10. 10.63³ =
  11. 11.49³ =
  12. 12.76³ =
  13. 13.47³ =
  14. 14.17³ =
  15. 15.97³ =
  16. 16.35³ =
  17. 17.29³ =
  18. 18.36³ =
  19. 19.41³ =
  20. 20.86³ =
  21. 21.56³ =
  22. 22.61³ =
  23. 23.53³ =
  24. 24.83³ =
  25. 25.33³ =
  26. 26.52³ =
  27. 27.61³ =
  28. 28.49³ =
  29. 29.12³ =
  30. 30.83³ =
  31. 31.82³ =
  32. 32.33³ =
  33. 33.27³ =
  34. 34.99³ =
  35. 35.36³ =
  36. 36.72³ =
  37. 37.68³ =
  38. 38.93³ =
  39. 39.16³ =
  40. 40.78³ =

Answer key

  1. 68921
  2. 132651
  3. 4096
  4. 59319
  5. 287496
  6. 592704
  7. 19683
  8. 42875
  9. 970299
  10. 250047
  11. 117649
  12. 438976
  13. 103823
  14. 4913
  15. 912673
  16. 42875
  17. 24389
  18. 46656
  19. 68921
  20. 636056
  21. 175616
  22. 226981
  23. 148877
  24. 571787
  25. 35937
  26. 140608
  27. 226981
  28. 117649
  29. 1728
  30. 571787
  31. 551368
  32. 35937
  33. 19683
  34. 970299
  35. 46656
  36. 373248
  37. 314432
  38. 804357
  39. 4096
  40. 474552

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