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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 155 · 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. 1.65³ =
  2. 2.82³ =
  3. 3.84³ =
  4. 4.26³ =
  5. 5.86³ =
  6. 6.86³ =
  7. 7.61³ =
  8. 8.83³ =
  9. 9.33³ =
  10. 10.63³ =
  11. 11.69³ =
  12. 12.18³ =
  13. 13.48³ =
  14. 14.87³ =
  15. 15.42³ =
  16. 16.75³ =
  17. 17.39³ =
  18. 18.95³ =
  19. 19.56³ =
  20. 20.82³ =
  21. 21.14³ =
  22. 22.11³ =
  23. 23.26³ =
  24. 24.31³ =
  25. 25.23³ =
  26. 26.21³ =
  27. 27.48³ =
  28. 28.64³ =
  29. 29.13³ =
  30. 30.35³ =
  31. 31.27³ =
  32. 32.75³ =
  33. 33.45³ =
  34. 34.85³ =
  35. 35.23³ =
  36. 36.17³ =
  37. 37.37³ =
  38. 38.13³ =
  39. 39.81³ =
  40. 40.41³ =

Answer key

  1. 274625
  2. 551368
  3. 592704
  4. 17576
  5. 636056
  6. 636056
  7. 226981
  8. 571787
  9. 35937
  10. 250047
  11. 328509
  12. 5832
  13. 110592
  14. 658503
  15. 74088
  16. 421875
  17. 59319
  18. 857375
  19. 175616
  20. 551368
  21. 2744
  22. 1331
  23. 17576
  24. 29791
  25. 12167
  26. 9261
  27. 110592
  28. 262144
  29. 2197
  30. 42875
  31. 19683
  32. 421875
  33. 91125
  34. 614125
  35. 12167
  36. 4913
  37. 50653
  38. 2197
  39. 531441
  40. 68921

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