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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 574 · 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. 1.91³ =
  2. 2.33³ =
  3. 3.31³ =
  4. 4.81³ =
  5. 5.98³ =
  6. 6.51³ =
  7. 7.33³ =
  8. 8.24³ =
  9. 9.21³ =
  10. 10.89³ =
  11. 11.74³ =
  12. 12.92³ =
  13. 13.61³ =
  14. 14.23³ =
  15. 15.31³ =
  16. 16.43³ =
  17. 17.15³ =
  18. 18.88³ =
  19. 19.22³ =
  20. 20.89³ =
  21. 21.32³ =
  22. 22.52³ =
  23. 23.39³ =
  24. 24.63³ =
  25. 25.72³ =
  26. 26.19³ =
  27. 27.25³ =
  28. 28.43³ =
  29. 29.51³ =
  30. 30.31³ =
  31. 31.64³ =
  32. 32.39³ =
  33. 33.52³ =
  34. 34.15³ =
  35. 35.51³ =
  36. 36.12³ =
  37. 37.88³ =
  38. 38.41³ =
  39. 39.86³ =
  40. 40.27³ =

Answer key

  1. 753571
  2. 35937
  3. 29791
  4. 531441
  5. 941192
  6. 132651
  7. 35937
  8. 13824
  9. 9261
  10. 704969
  11. 405224
  12. 778688
  13. 226981
  14. 12167
  15. 29791
  16. 79507
  17. 3375
  18. 681472
  19. 10648
  20. 704969
  21. 32768
  22. 140608
  23. 59319
  24. 250047
  25. 373248
  26. 6859
  27. 15625
  28. 79507
  29. 132651
  30. 29791
  31. 262144
  32. 59319
  33. 140608
  34. 3375
  35. 132651
  36. 1728
  37. 681472
  38. 68921
  39. 636056
  40. 19683

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