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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 838 · 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. 1.84³ =
  2. 2.43³ =
  3. 3.21³ =
  4. 4.37³ =
  5. 5.17³ =
  6. 6.61³ =
  7. 7.57³ =
  8. 8.89³ =
  9. 9.11³ =
  10. 10.25³ =
  11. 11.39³ =
  12. 12.47³ =
  13. 13.11³ =
  14. 14.46³ =
  15. 15.58³ =
  16. 16.68³ =
  17. 17.92³ =
  18. 18.59³ =
  19. 19.99³ =
  20. 20.71³ =
  21. 21.17³ =
  22. 22.75³ =
  23. 23.63³ =
  24. 24.38³ =
  25. 25.79³ =
  26. 26.49³ =
  27. 27.19³ =
  28. 28.51³ =
  29. 29.77³ =
  30. 30.59³ =
  31. 31.27³ =
  32. 32.61³ =
  33. 33.76³ =
  34. 34.33³ =
  35. 35.61³ =
  36. 36.19³ =
  37. 37.23³ =
  38. 38.38³ =
  39. 39.86³ =
  40. 40.79³ =

Answer key

  1. 592704
  2. 79507
  3. 9261
  4. 50653
  5. 4913
  6. 226981
  7. 185193
  8. 704969
  9. 1331
  10. 15625
  11. 59319
  12. 103823
  13. 1331
  14. 97336
  15. 195112
  16. 314432
  17. 778688
  18. 205379
  19. 970299
  20. 357911
  21. 4913
  22. 421875
  23. 250047
  24. 54872
  25. 493039
  26. 117649
  27. 6859
  28. 132651
  29. 456533
  30. 205379
  31. 19683
  32. 226981
  33. 438976
  34. 35937
  35. 226981
  36. 6859
  37. 12167
  38. 54872
  39. 636056
  40. 493039

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