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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 209 · 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. 1.76³ =
  2. 2.16³ =
  3. 3.84³ =
  4. 4.66³ =
  5. 5.23³ =
  6. 6.41³ =
  7. 7.81³ =
  8. 8.51³ =
  9. 9.35³ =
  10. 10.21³ =
  11. 11.46³ =
  12. 12.97³ =
  13. 13.28³ =
  14. 14.99³ =
  15. 15.24³ =
  16. 16.73³ =
  17. 17.69³ =
  18. 18.91³ =
  19. 19.67³ =
  20. 20.41³ =
  21. 21.91³ =
  22. 22.31³ =
  23. 23.51³ =
  24. 24.33³ =
  25. 25.67³ =
  26. 26.41³ =
  27. 27.33³ =
  28. 28.37³ =
  29. 29.34³ =
  30. 30.28³ =
  31. 31.96³ =
  32. 32.12³ =
  33. 33.36³ =
  34. 34.51³ =
  35. 35.11³ =
  36. 36.37³ =
  37. 37.16³ =
  38. 38.24³ =
  39. 39.14³ =
  40. 40.25³ =

Answer key

  1. 438976
  2. 4096
  3. 592704
  4. 287496
  5. 12167
  6. 68921
  7. 531441
  8. 132651
  9. 42875
  10. 9261
  11. 97336
  12. 912673
  13. 21952
  14. 970299
  15. 13824
  16. 389017
  17. 328509
  18. 753571
  19. 300763
  20. 68921
  21. 753571
  22. 29791
  23. 132651
  24. 35937
  25. 300763
  26. 68921
  27. 35937
  28. 50653
  29. 39304
  30. 21952
  31. 884736
  32. 1728
  33. 46656
  34. 132651
  35. 1331
  36. 50653
  37. 4096
  38. 13824
  39. 2744
  40. 15625

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