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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 122 · 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. 1.83³ =
  2. 2.31³ =
  3. 3.79³ =
  4. 4.89³ =
  5. 5.47³ =
  6. 6.91³ =
  7. 7.44³ =
  8. 8.22³ =
  9. 9.77³ =
  10. 10.35³ =
  11. 11.34³ =
  12. 12.69³ =
  13. 13.68³ =
  14. 14.77³ =
  15. 15.57³ =
  16. 16.43³ =
  17. 17.79³ =
  18. 18.11³ =
  19. 19.81³ =
  20. 20.96³ =
  21. 21.43³ =
  22. 22.35³ =
  23. 23.83³ =
  24. 24.25³ =
  25. 25.85³ =
  26. 26.72³ =
  27. 27.38³ =
  28. 28.41³ =
  29. 29.19³ =
  30. 30.75³ =
  31. 31.26³ =
  32. 32.17³ =
  33. 33.69³ =
  34. 34.23³ =
  35. 35.61³ =
  36. 36.32³ =
  37. 37.22³ =
  38. 38.47³ =
  39. 39.73³ =
  40. 40.85³ =

Answer key

  1. 571787
  2. 29791
  3. 493039
  4. 704969
  5. 103823
  6. 753571
  7. 85184
  8. 10648
  9. 456533
  10. 42875
  11. 39304
  12. 328509
  13. 314432
  14. 456533
  15. 185193
  16. 79507
  17. 493039
  18. 1331
  19. 531441
  20. 884736
  21. 79507
  22. 42875
  23. 571787
  24. 15625
  25. 614125
  26. 373248
  27. 54872
  28. 68921
  29. 6859
  30. 421875
  31. 17576
  32. 4913
  33. 328509
  34. 12167
  35. 226981
  36. 32768
  37. 10648
  38. 103823
  39. 389017
  40. 614125

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