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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 351 · 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. 1.82³ =
  2. 2.61³ =
  3. 3.61³ =
  4. 4.32³ =
  5. 5.14³ =
  6. 6.64³ =
  7. 7.28³ =
  8. 8.82³ =
  9. 9.54³ =
  10. 10.94³ =
  11. 11.18³ =
  12. 12.19³ =
  13. 13.14³ =
  14. 14.13³ =
  15. 15.23³ =
  16. 16.59³ =
  17. 17.91³ =
  18. 18.68³ =
  19. 19.84³ =
  20. 20.48³ =
  21. 21.35³ =
  22. 22.75³ =
  23. 23.61³ =
  24. 24.37³ =
  25. 25.76³ =
  26. 26.66³ =
  27. 27.94³ =
  28. 28.77³ =
  29. 29.81³ =
  30. 30.24³ =
  31. 31.35³ =
  32. 32.21³ =
  33. 33.81³ =
  34. 34.31³ =
  35. 35.83³ =
  36. 36.55³ =
  37. 37.91³ =
  38. 38.83³ =
  39. 39.18³ =
  40. 40.71³ =

Answer key

  1. 551368
  2. 226981
  3. 226981
  4. 32768
  5. 2744
  6. 262144
  7. 21952
  8. 551368
  9. 157464
  10. 830584
  11. 5832
  12. 6859
  13. 2744
  14. 2197
  15. 12167
  16. 205379
  17. 753571
  18. 314432
  19. 592704
  20. 110592
  21. 42875
  22. 421875
  23. 226981
  24. 50653
  25. 438976
  26. 287496
  27. 830584
  28. 456533
  29. 531441
  30. 13824
  31. 42875
  32. 9261
  33. 531441
  34. 29791
  35. 571787
  36. 166375
  37. 753571
  38. 571787
  39. 5832
  40. 357911

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