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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 41 · 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. 2.41³ =
  3. 3.79³ =
  4. 4.47³ =
  5. 5.81³ =
  6. 6.14³ =
  7. 7.95³ =
  8. 8.91³ =
  9. 9.51³ =
  10. 10.64³ =
  11. 11.46³ =
  12. 12.77³ =
  13. 13.51³ =
  14. 14.49³ =
  15. 15.75³ =
  16. 16.34³ =
  17. 17.55³ =
  18. 18.35³ =
  19. 19.14³ =
  20. 20.77³ =
  21. 21.76³ =
  22. 22.71³ =
  23. 23.81³ =
  24. 24.19³ =
  25. 25.98³ =
  26. 26.46³ =
  27. 27.37³ =
  28. 28.82³ =
  29. 29.36³ =
  30. 30.19³ =
  31. 31.97³ =
  32. 32.37³ =
  33. 33.53³ =
  34. 34.47³ =
  35. 35.69³ =
  36. 36.84³ =
  37. 37.46³ =
  38. 38.92³ =
  39. 39.36³ =
  40. 40.58³ =

Answer key

  1. 42875
  2. 68921
  3. 493039
  4. 103823
  5. 531441
  6. 2744
  7. 857375
  8. 753571
  9. 132651
  10. 262144
  11. 97336
  12. 456533
  13. 132651
  14. 117649
  15. 421875
  16. 39304
  17. 166375
  18. 42875
  19. 2744
  20. 456533
  21. 438976
  22. 357911
  23. 531441
  24. 6859
  25. 941192
  26. 97336
  27. 50653
  28. 551368
  29. 46656
  30. 6859
  31. 912673
  32. 50653
  33. 148877
  34. 103823
  35. 328509
  36. 592704
  37. 97336
  38. 778688
  39. 46656
  40. 195112

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