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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 164 · 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. 1.77³ =
  2. 2.21³ =
  3. 3.25³ =
  4. 4.63³ =
  5. 5.98³ =
  6. 6.73³ =
  7. 7.21³ =
  8. 8.79³ =
  9. 9.64³ =
  10. 10.11³ =
  11. 11.32³ =
  12. 12.91³ =
  13. 13.37³ =
  14. 14.89³ =
  15. 15.29³ =
  16. 16.59³ =
  17. 17.68³ =
  18. 18.36³ =
  19. 19.72³ =
  20. 20.74³ =
  21. 21.21³ =
  22. 22.56³ =
  23. 23.31³ =
  24. 24.78³ =
  25. 25.71³ =
  26. 26.21³ =
  27. 27.46³ =
  28. 28.21³ =
  29. 29.92³ =
  30. 30.51³ =
  31. 31.22³ =
  32. 32.41³ =
  33. 33.46³ =
  34. 34.94³ =
  35. 35.31³ =
  36. 36.72³ =
  37. 37.68³ =
  38. 38.93³ =
  39. 39.81³ =
  40. 40.24³ =

Answer key

  1. 456533
  2. 9261
  3. 15625
  4. 250047
  5. 941192
  6. 389017
  7. 9261
  8. 493039
  9. 262144
  10. 1331
  11. 32768
  12. 753571
  13. 50653
  14. 704969
  15. 24389
  16. 205379
  17. 314432
  18. 46656
  19. 373248
  20. 405224
  21. 9261
  22. 175616
  23. 29791
  24. 474552
  25. 357911
  26. 9261
  27. 97336
  28. 9261
  29. 778688
  30. 132651
  31. 10648
  32. 68921
  33. 97336
  34. 830584
  35. 29791
  36. 373248
  37. 314432
  38. 804357
  39. 531441
  40. 13824

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