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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 690 · 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. 1.86³ =
  2. 2.31³ =
  3. 3.83³ =
  4. 4.91³ =
  5. 5.41³ =
  6. 6.97³ =
  7. 7.33³ =
  8. 8.88³ =
  9. 9.71³ =
  10. 10.69³ =
  11. 11.61³ =
  12. 12.92³ =
  13. 13.98³ =
  14. 14.58³ =
  15. 15.24³ =
  16. 16.91³ =
  17. 17.84³ =
  18. 18.22³ =
  19. 19.28³ =
  20. 20.39³ =
  21. 21.48³ =
  22. 22.93³ =
  23. 23.63³ =
  24. 24.65³ =
  25. 25.69³ =
  26. 26.88³ =
  27. 27.25³ =
  28. 28.48³ =
  29. 29.46³ =
  30. 30.41³ =
  31. 31.81³ =
  32. 32.52³ =
  33. 33.95³ =
  34. 34.47³ =
  35. 35.31³ =
  36. 36.16³ =
  37. 37.18³ =
  38. 38.93³ =
  39. 39.41³ =
  40. 40.21³ =

Answer key

  1. 636056
  2. 29791
  3. 571787
  4. 753571
  5. 68921
  6. 912673
  7. 35937
  8. 681472
  9. 357911
  10. 328509
  11. 226981
  12. 778688
  13. 941192
  14. 195112
  15. 13824
  16. 753571
  17. 592704
  18. 10648
  19. 21952
  20. 59319
  21. 110592
  22. 804357
  23. 250047
  24. 274625
  25. 328509
  26. 681472
  27. 15625
  28. 110592
  29. 97336
  30. 68921
  31. 531441
  32. 140608
  33. 857375
  34. 103823
  35. 29791
  36. 4096
  37. 5832
  38. 804357
  39. 68921
  40. 9261

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