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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 776 · 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. 1.89³ =
  2. 2.25³ =
  3. 3.53³ =
  4. 4.42³ =
  5. 5.91³ =
  6. 6.17³ =
  7. 7.43³ =
  8. 8.49³ =
  9. 9.77³ =
  10. 10.87³ =
  11. 11.72³ =
  12. 12.24³ =
  13. 13.32³ =
  14. 14.55³ =
  15. 15.71³ =
  16. 16.91³ =
  17. 17.12³ =
  18. 18.14³ =
  19. 19.83³ =
  20. 20.86³ =
  21. 21.63³ =
  22. 22.91³ =
  23. 23.47³ =
  24. 24.59³ =
  25. 25.31³ =
  26. 26.61³ =
  27. 27.65³ =
  28. 28.79³ =
  29. 29.32³ =
  30. 30.28³ =
  31. 31.32³ =
  32. 32.39³ =
  33. 33.75³ =
  34. 34.61³ =
  35. 35.96³ =
  36. 36.21³ =
  37. 37.97³ =
  38. 38.51³ =
  39. 39.54³ =
  40. 40.56³ =

Answer key

  1. 704969
  2. 15625
  3. 148877
  4. 74088
  5. 753571
  6. 4913
  7. 79507
  8. 117649
  9. 456533
  10. 658503
  11. 373248
  12. 13824
  13. 32768
  14. 166375
  15. 357911
  16. 753571
  17. 1728
  18. 2744
  19. 571787
  20. 636056
  21. 250047
  22. 753571
  23. 103823
  24. 205379
  25. 29791
  26. 226981
  27. 274625
  28. 493039
  29. 32768
  30. 21952
  31. 32768
  32. 59319
  33. 421875
  34. 226981
  35. 884736
  36. 9261
  37. 912673
  38. 132651
  39. 157464
  40. 175616

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