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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 135 · 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. 1.35³ =
  2. 2.31³ =
  3. 3.32³ =
  4. 4.41³ =
  5. 5.41³ =
  6. 6.76³ =
  7. 7.46³ =
  8. 8.45³ =
  9. 9.32³ =
  10. 10.21³ =
  11. 11.97³ =
  12. 12.25³ =
  13. 13.89³ =
  14. 14.13³ =
  15. 15.61³ =
  16. 16.91³ =
  17. 17.58³ =
  18. 18.37³ =
  19. 19.53³ =
  20. 20.12³ =
  21. 21.85³ =
  22. 22.84³ =
  23. 23.83³ =
  24. 24.75³ =
  25. 25.29³ =
  26. 26.24³ =
  27. 27.95³ =
  28. 28.27³ =
  29. 29.22³ =
  30. 30.54³ =
  31. 31.62³ =
  32. 32.27³ =
  33. 33.23³ =
  34. 34.63³ =
  35. 35.83³ =
  36. 36.53³ =
  37. 37.77³ =
  38. 38.47³ =
  39. 39.53³ =
  40. 40.17³ =

Answer key

  1. 42875
  2. 29791
  3. 32768
  4. 68921
  5. 68921
  6. 438976
  7. 97336
  8. 91125
  9. 32768
  10. 9261
  11. 912673
  12. 15625
  13. 704969
  14. 2197
  15. 226981
  16. 753571
  17. 195112
  18. 50653
  19. 148877
  20. 1728
  21. 614125
  22. 592704
  23. 571787
  24. 421875
  25. 24389
  26. 13824
  27. 857375
  28. 19683
  29. 10648
  30. 157464
  31. 238328
  32. 19683
  33. 12167
  34. 250047
  35. 571787
  36. 148877
  37. 456533
  38. 103823
  39. 148877
  40. 4913

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