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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 550 · 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. 1.28³ =
  2. 2.85³ =
  3. 3.36³ =
  4. 4.44³ =
  5. 5.74³ =
  6. 6.65³ =
  7. 7.14³ =
  8. 8.14³ =
  9. 9.23³ =
  10. 10.29³ =
  11. 11.89³ =
  12. 12.91³ =
  13. 13.72³ =
  14. 14.84³ =
  15. 15.34³ =
  16. 16.46³ =
  17. 17.38³ =
  18. 18.26³ =
  19. 19.82³ =
  20. 20.68³ =
  21. 21.39³ =
  22. 22.93³ =
  23. 23.78³ =
  24. 24.93³ =
  25. 25.48³ =
  26. 26.51³ =
  27. 27.16³ =
  28. 28.41³ =
  29. 29.99³ =
  30. 30.36³ =
  31. 31.48³ =
  32. 32.72³ =
  33. 33.77³ =
  34. 34.79³ =
  35. 35.43³ =
  36. 36.82³ =
  37. 37.26³ =
  38. 38.24³ =
  39. 39.98³ =
  40. 40.54³ =

Answer key

  1. 21952
  2. 614125
  3. 46656
  4. 85184
  5. 405224
  6. 274625
  7. 2744
  8. 2744
  9. 12167
  10. 24389
  11. 704969
  12. 753571
  13. 373248
  14. 592704
  15. 39304
  16. 97336
  17. 54872
  18. 17576
  19. 551368
  20. 314432
  21. 59319
  22. 804357
  23. 474552
  24. 804357
  25. 110592
  26. 132651
  27. 4096
  28. 68921
  29. 970299
  30. 46656
  31. 110592
  32. 373248
  33. 456533
  34. 493039
  35. 79507
  36. 551368
  37. 17576
  38. 13824
  39. 941192
  40. 157464

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