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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 738 · 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. 1.28³ =
  2. 2.39³ =
  3. 3.26³ =
  4. 4.31³ =
  5. 5.93³ =
  6. 6.81³ =
  7. 7.23³ =
  8. 8.14³ =
  9. 9.91³ =
  10. 10.61³ =
  11. 11.15³ =
  12. 12.55³ =
  13. 13.58³ =
  14. 14.58³ =
  15. 15.95³ =
  16. 16.27³ =
  17. 17.89³ =
  18. 18.11³ =
  19. 19.36³ =
  20. 20.78³ =
  21. 21.95³ =
  22. 22.65³ =
  23. 23.96³ =
  24. 24.93³ =
  25. 25.64³ =
  26. 26.26³ =
  27. 27.58³ =
  28. 28.98³ =
  29. 29.82³ =
  30. 30.63³ =
  31. 31.35³ =
  32. 32.81³ =
  33. 33.41³ =
  34. 34.41³ =
  35. 35.89³ =
  36. 36.71³ =
  37. 37.73³ =
  38. 38.67³ =
  39. 39.44³ =
  40. 40.13³ =

Answer key

  1. 21952
  2. 59319
  3. 17576
  4. 29791
  5. 804357
  6. 531441
  7. 12167
  8. 2744
  9. 753571
  10. 226981
  11. 3375
  12. 166375
  13. 195112
  14. 195112
  15. 857375
  16. 19683
  17. 704969
  18. 1331
  19. 46656
  20. 474552
  21. 857375
  22. 274625
  23. 884736
  24. 804357
  25. 262144
  26. 17576
  27. 195112
  28. 941192
  29. 551368
  30. 250047
  31. 42875
  32. 531441
  33. 68921
  34. 68921
  35. 704969
  36. 357911
  37. 389017
  38. 300763
  39. 85184
  40. 2197

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