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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 948 · 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. 1.75³ =
  2. 2.72³ =
  3. 3.65³ =
  4. 4.97³ =
  5. 5.14³ =
  6. 6.17³ =
  7. 7.14³ =
  8. 8.56³ =
  9. 9.71³ =
  10. 10.17³ =
  11. 11.69³ =
  12. 12.71³ =
  13. 13.33³ =
  14. 14.84³ =
  15. 15.48³ =
  16. 16.61³ =
  17. 17.31³ =
  18. 18.81³ =
  19. 19.61³ =
  20. 20.63³ =
  21. 21.99³ =
  22. 22.11³ =
  23. 23.68³ =
  24. 24.46³ =
  25. 25.74³ =
  26. 26.63³ =
  27. 27.42³ =
  28. 28.64³ =
  29. 29.63³ =
  30. 30.68³ =
  31. 31.91³ =
  32. 32.23³ =
  33. 33.71³ =
  34. 34.27³ =
  35. 35.88³ =
  36. 36.15³ =
  37. 37.37³ =
  38. 38.21³ =
  39. 39.88³ =
  40. 40.29³ =

Answer key

  1. 421875
  2. 373248
  3. 274625
  4. 912673
  5. 2744
  6. 4913
  7. 2744
  8. 175616
  9. 357911
  10. 4913
  11. 328509
  12. 357911
  13. 35937
  14. 592704
  15. 110592
  16. 226981
  17. 29791
  18. 531441
  19. 226981
  20. 250047
  21. 970299
  22. 1331
  23. 314432
  24. 97336
  25. 405224
  26. 250047
  27. 74088
  28. 262144
  29. 250047
  30. 314432
  31. 753571
  32. 12167
  33. 357911
  34. 19683
  35. 681472
  36. 3375
  37. 50653
  38. 9261
  39. 681472
  40. 24389

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