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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 116 · 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. 2.31³ =
  3. 3.94³ =
  4. 4.56³ =
  5. 5.69³ =
  6. 6.63³ =
  7. 7.54³ =
  8. 8.99³ =
  9. 9.93³ =
  10. 10.79³ =
  11. 11.19³ =
  12. 12.22³ =
  13. 13.58³ =
  14. 14.46³ =
  15. 15.21³ =
  16. 16.26³ =
  17. 17.97³ =
  18. 18.72³ =
  19. 19.81³ =
  20. 20.35³ =
  21. 21.33³ =
  22. 22.71³ =
  23. 23.33³ =
  24. 24.91³ =
  25. 25.61³ =
  26. 26.83³ =
  27. 27.48³ =
  28. 28.71³ =
  29. 29.76³ =
  30. 30.63³ =
  31. 31.45³ =
  32. 32.71³ =
  33. 33.37³ =
  34. 34.93³ =
  35. 35.65³ =
  36. 36.23³ =
  37. 37.41³ =
  38. 38.79³ =
  39. 39.28³ =
  40. 40.79³ =

Answer key

  1. 9261
  2. 29791
  3. 830584
  4. 175616
  5. 328509
  6. 250047
  7. 157464
  8. 970299
  9. 804357
  10. 493039
  11. 6859
  12. 10648
  13. 195112
  14. 97336
  15. 9261
  16. 17576
  17. 912673
  18. 373248
  19. 531441
  20. 42875
  21. 35937
  22. 357911
  23. 35937
  24. 753571
  25. 226981
  26. 571787
  27. 110592
  28. 357911
  29. 438976
  30. 250047
  31. 91125
  32. 357911
  33. 50653
  34. 804357
  35. 274625
  36. 12167
  37. 68921
  38. 493039
  39. 21952
  40. 493039

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