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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 142 · 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. 1.27³ =
  2. 2.75³ =
  3. 3.14³ =
  4. 4.81³ =
  5. 5.69³ =
  6. 6.97³ =
  7. 7.71³ =
  8. 8.91³ =
  9. 9.43³ =
  10. 10.24³ =
  11. 11.65³ =
  12. 12.85³ =
  13. 13.23³ =
  14. 14.12³ =
  15. 15.58³ =
  16. 16.15³ =
  17. 17.17³ =
  18. 18.47³ =
  19. 19.12³ =
  20. 20.41³ =
  21. 21.67³ =
  22. 22.54³ =
  23. 23.46³ =
  24. 24.34³ =
  25. 25.31³ =
  26. 26.66³ =
  27. 27.64³ =
  28. 28.24³ =
  29. 29.71³ =
  30. 30.56³ =
  31. 31.43³ =
  32. 32.55³ =
  33. 33.31³ =
  34. 34.71³ =
  35. 35.71³ =
  36. 36.25³ =
  37. 37.26³ =
  38. 38.84³ =
  39. 39.81³ =
  40. 40.16³ =

Answer key

  1. 19683
  2. 421875
  3. 2744
  4. 531441
  5. 328509
  6. 912673
  7. 357911
  8. 753571
  9. 79507
  10. 13824
  11. 274625
  12. 614125
  13. 12167
  14. 1728
  15. 195112
  16. 3375
  17. 4913
  18. 103823
  19. 1728
  20. 68921
  21. 300763
  22. 157464
  23. 97336
  24. 39304
  25. 29791
  26. 287496
  27. 262144
  28. 13824
  29. 357911
  30. 175616
  31. 79507
  32. 166375
  33. 29791
  34. 357911
  35. 357911
  36. 15625
  37. 17576
  38. 592704
  39. 531441
  40. 4096

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