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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 96 · 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. 1.31³ =
  2. 2.25³ =
  3. 3.65³ =
  4. 4.91³ =
  5. 5.81³ =
  6. 6.44³ =
  7. 7.93³ =
  8. 8.71³ =
  9. 9.31³ =
  10. 10.93³ =
  11. 11.61³ =
  12. 12.53³ =
  13. 13.48³ =
  14. 14.86³ =
  15. 15.65³ =
  16. 16.81³ =
  17. 17.91³ =
  18. 18.11³ =
  19. 19.21³ =
  20. 20.84³ =
  21. 21.19³ =
  22. 22.42³ =
  23. 23.43³ =
  24. 24.98³ =
  25. 25.85³ =
  26. 26.38³ =
  27. 27.67³ =
  28. 28.44³ =
  29. 29.96³ =
  30. 30.24³ =
  31. 31.38³ =
  32. 32.29³ =
  33. 33.31³ =
  34. 34.35³ =
  35. 35.32³ =
  36. 36.19³ =
  37. 37.96³ =
  38. 38.89³ =
  39. 39.25³ =
  40. 40.96³ =

Answer key

  1. 29791
  2. 15625
  3. 274625
  4. 753571
  5. 531441
  6. 85184
  7. 804357
  8. 357911
  9. 29791
  10. 804357
  11. 226981
  12. 148877
  13. 110592
  14. 636056
  15. 274625
  16. 531441
  17. 753571
  18. 1331
  19. 9261
  20. 592704
  21. 6859
  22. 74088
  23. 79507
  24. 941192
  25. 614125
  26. 54872
  27. 300763
  28. 85184
  29. 884736
  30. 13824
  31. 54872
  32. 24389
  33. 29791
  34. 42875
  35. 32768
  36. 6859
  37. 884736
  38. 704969
  39. 15625
  40. 884736

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