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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 421 · 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. 1.86³ =
  2. 2.15³ =
  3. 3.76³ =
  4. 4.61³ =
  5. 5.98³ =
  6. 6.34³ =
  7. 7.18³ =
  8. 8.29³ =
  9. 9.36³ =
  10. 10.83³ =
  11. 11.54³ =
  12. 12.24³ =
  13. 13.63³ =
  14. 14.74³ =
  15. 15.88³ =
  16. 16.48³ =
  17. 17.17³ =
  18. 18.34³ =
  19. 19.29³ =
  20. 20.91³ =
  21. 21.89³ =
  22. 22.73³ =
  23. 23.94³ =
  24. 24.47³ =
  25. 25.41³ =
  26. 26.15³ =
  27. 27.77³ =
  28. 28.83³ =
  29. 29.59³ =
  30. 30.26³ =
  31. 31.21³ =
  32. 32.21³ =
  33. 33.91³ =
  34. 34.37³ =
  35. 35.12³ =
  36. 36.45³ =
  37. 37.71³ =
  38. 38.31³ =
  39. 39.23³ =
  40. 40.61³ =

Answer key

  1. 636056
  2. 3375
  3. 438976
  4. 226981
  5. 941192
  6. 39304
  7. 5832
  8. 24389
  9. 46656
  10. 571787
  11. 157464
  12. 13824
  13. 250047
  14. 405224
  15. 681472
  16. 110592
  17. 4913
  18. 39304
  19. 24389
  20. 753571
  21. 704969
  22. 389017
  23. 830584
  24. 103823
  25. 68921
  26. 3375
  27. 456533
  28. 571787
  29. 205379
  30. 17576
  31. 9261
  32. 9261
  33. 753571
  34. 50653
  35. 1728
  36. 91125
  37. 357911
  38. 29791
  39. 12167
  40. 226981

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