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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 621 · 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. 1.21³ =
  2. 2.16³ =
  3. 3.97³ =
  4. 4.52³ =
  5. 5.15³ =
  6. 6.83³ =
  7. 7.78³ =
  8. 8.71³ =
  9. 9.18³ =
  10. 10.88³ =
  11. 11.86³ =
  12. 12.12³ =
  13. 13.15³ =
  14. 14.84³ =
  15. 15.86³ =
  16. 16.61³ =
  17. 17.81³ =
  18. 18.25³ =
  19. 19.72³ =
  20. 20.36³ =
  21. 21.86³ =
  22. 22.61³ =
  23. 23.93³ =
  24. 24.21³ =
  25. 25.13³ =
  26. 26.15³ =
  27. 27.32³ =
  28. 28.85³ =
  29. 29.33³ =
  30. 30.91³ =
  31. 31.24³ =
  32. 32.31³ =
  33. 33.24³ =
  34. 34.37³ =
  35. 35.31³ =
  36. 36.28³ =
  37. 37.47³ =
  38. 38.16³ =
  39. 39.11³ =
  40. 40.13³ =

Answer key

  1. 9261
  2. 4096
  3. 912673
  4. 140608
  5. 3375
  6. 571787
  7. 474552
  8. 357911
  9. 5832
  10. 681472
  11. 636056
  12. 1728
  13. 3375
  14. 592704
  15. 636056
  16. 226981
  17. 531441
  18. 15625
  19. 373248
  20. 46656
  21. 636056
  22. 226981
  23. 804357
  24. 9261
  25. 2197
  26. 3375
  27. 32768
  28. 614125
  29. 35937
  30. 753571
  31. 13824
  32. 29791
  33. 13824
  34. 50653
  35. 29791
  36. 21952
  37. 103823
  38. 4096
  39. 1331
  40. 2197

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