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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 661 · 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. 1.38³ =
  2. 2.87³ =
  3. 3.14³ =
  4. 4.51³ =
  5. 5.99³ =
  6. 6.81³ =
  7. 7.32³ =
  8. 8.87³ =
  9. 9.71³ =
  10. 10.62³ =
  11. 11.59³ =
  12. 12.81³ =
  13. 13.17³ =
  14. 14.97³ =
  15. 15.95³ =
  16. 16.31³ =
  17. 17.96³ =
  18. 18.21³ =
  19. 19.77³ =
  20. 20.36³ =
  21. 21.16³ =
  22. 22.68³ =
  23. 23.86³ =
  24. 24.77³ =
  25. 25.58³ =
  26. 26.76³ =
  27. 27.31³ =
  28. 28.33³ =
  29. 29.63³ =
  30. 30.21³ =
  31. 31.81³ =
  32. 32.91³ =
  33. 33.55³ =
  34. 34.47³ =
  35. 35.47³ =
  36. 36.93³ =
  37. 37.74³ =
  38. 38.33³ =
  39. 39.95³ =
  40. 40.21³ =

Answer key

  1. 54872
  2. 658503
  3. 2744
  4. 132651
  5. 970299
  6. 531441
  7. 32768
  8. 658503
  9. 357911
  10. 238328
  11. 205379
  12. 531441
  13. 4913
  14. 912673
  15. 857375
  16. 29791
  17. 884736
  18. 9261
  19. 456533
  20. 46656
  21. 4096
  22. 314432
  23. 636056
  24. 456533
  25. 195112
  26. 438976
  27. 29791
  28. 35937
  29. 250047
  30. 9261
  31. 531441
  32. 753571
  33. 166375
  34. 103823
  35. 103823
  36. 804357
  37. 405224
  38. 35937
  39. 857375
  40. 9261

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