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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 269 · 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. 1.87³ =
  2. 2.86³ =
  3. 3.44³ =
  4. 4.72³ =
  5. 5.24³ =
  6. 6.86³ =
  7. 7.27³ =
  8. 8.17³ =
  9. 9.25³ =
  10. 10.45³ =
  11. 11.12³ =
  12. 12.49³ =
  13. 13.13³ =
  14. 14.23³ =
  15. 15.41³ =
  16. 16.71³ =
  17. 17.83³ =
  18. 18.95³ =
  19. 19.68³ =
  20. 20.96³ =
  21. 21.85³ =
  22. 22.61³ =
  23. 23.56³ =
  24. 24.39³ =
  25. 25.14³ =
  26. 26.65³ =
  27. 27.46³ =
  28. 28.91³ =
  29. 29.64³ =
  30. 30.79³ =
  31. 31.49³ =
  32. 32.91³ =
  33. 33.29³ =
  34. 34.86³ =
  35. 35.73³ =
  36. 36.31³ =
  37. 37.43³ =
  38. 38.23³ =
  39. 39.51³ =
  40. 40.61³ =

Answer key

  1. 658503
  2. 636056
  3. 85184
  4. 373248
  5. 13824
  6. 636056
  7. 19683
  8. 4913
  9. 15625
  10. 91125
  11. 1728
  12. 117649
  13. 2197
  14. 12167
  15. 68921
  16. 357911
  17. 571787
  18. 857375
  19. 314432
  20. 884736
  21. 614125
  22. 226981
  23. 175616
  24. 59319
  25. 2744
  26. 274625
  27. 97336
  28. 753571
  29. 262144
  30. 493039
  31. 117649
  32. 753571
  33. 24389
  34. 636056
  35. 389017
  36. 29791
  37. 79507
  38. 12167
  39. 132651
  40. 226981

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