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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 591 · 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. 1.41³ =
  2. 2.83³ =
  3. 3.16³ =
  4. 4.21³ =
  5. 5.35³ =
  6. 6.21³ =
  7. 7.13³ =
  8. 8.51³ =
  9. 9.28³ =
  10. 10.19³ =
  11. 11.37³ =
  12. 12.97³ =
  13. 13.31³ =
  14. 14.78³ =
  15. 15.43³ =
  16. 16.88³ =
  17. 17.27³ =
  18. 18.75³ =
  19. 19.89³ =
  20. 20.41³ =
  21. 21.38³ =
  22. 22.21³ =
  23. 23.37³ =
  24. 24.22³ =
  25. 25.42³ =
  26. 26.41³ =
  27. 27.25³ =
  28. 28.34³ =
  29. 29.43³ =
  30. 30.88³ =
  31. 31.64³ =
  32. 32.91³ =
  33. 33.92³ =
  34. 34.64³ =
  35. 35.48³ =
  36. 36.41³ =
  37. 37.77³ =
  38. 38.19³ =
  39. 39.35³ =
  40. 40.78³ =

Answer key

  1. 68921
  2. 571787
  3. 4096
  4. 9261
  5. 42875
  6. 9261
  7. 2197
  8. 132651
  9. 21952
  10. 6859
  11. 50653
  12. 912673
  13. 29791
  14. 474552
  15. 79507
  16. 681472
  17. 19683
  18. 421875
  19. 704969
  20. 68921
  21. 54872
  22. 9261
  23. 50653
  24. 10648
  25. 74088
  26. 68921
  27. 15625
  28. 39304
  29. 79507
  30. 681472
  31. 262144
  32. 753571
  33. 778688
  34. 262144
  35. 110592
  36. 68921
  37. 456533
  38. 6859
  39. 42875
  40. 474552

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