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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 328 · 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. 1.68³ =
  2. 2.11³ =
  3. 3.79³ =
  4. 4.32³ =
  5. 5.17³ =
  6. 6.73³ =
  7. 7.15³ =
  8. 8.96³ =
  9. 9.56³ =
  10. 10.46³ =
  11. 11.36³ =
  12. 12.61³ =
  13. 13.21³ =
  14. 14.49³ =
  15. 15.71³ =
  16. 16.45³ =
  17. 17.57³ =
  18. 18.93³ =
  19. 19.99³ =
  20. 20.52³ =
  21. 21.91³ =
  22. 22.27³ =
  23. 23.31³ =
  24. 24.41³ =
  25. 25.62³ =
  26. 26.19³ =
  27. 27.43³ =
  28. 28.88³ =
  29. 29.61³ =
  30. 30.51³ =
  31. 31.61³ =
  32. 32.81³ =
  33. 33.31³ =
  34. 34.71³ =
  35. 35.31³ =
  36. 36.47³ =
  37. 37.71³ =
  38. 38.85³ =
  39. 39.91³ =
  40. 40.76³ =

Answer key

  1. 314432
  2. 1331
  3. 493039
  4. 32768
  5. 4913
  6. 389017
  7. 3375
  8. 884736
  9. 175616
  10. 97336
  11. 46656
  12. 226981
  13. 9261
  14. 117649
  15. 357911
  16. 91125
  17. 185193
  18. 804357
  19. 970299
  20. 140608
  21. 753571
  22. 19683
  23. 29791
  24. 68921
  25. 238328
  26. 6859
  27. 79507
  28. 681472
  29. 226981
  30. 132651
  31. 226981
  32. 531441
  33. 29791
  34. 357911
  35. 29791
  36. 103823
  37. 357911
  38. 614125
  39. 753571
  40. 438976

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