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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 316 · 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. 1.55³ =
  2. 2.43³ =
  3. 3.11³ =
  4. 4.38³ =
  5. 5.91³ =
  6. 6.41³ =
  7. 7.83³ =
  8. 8.75³ =
  9. 9.41³ =
  10. 10.18³ =
  11. 11.17³ =
  12. 12.47³ =
  13. 13.67³ =
  14. 14.78³ =
  15. 15.26³ =
  16. 16.57³ =
  17. 17.77³ =
  18. 18.71³ =
  19. 19.55³ =
  20. 20.87³ =
  21. 21.29³ =
  22. 22.29³ =
  23. 23.91³ =
  24. 24.63³ =
  25. 25.52³ =
  26. 26.35³ =
  27. 27.63³ =
  28. 28.37³ =
  29. 29.19³ =
  30. 30.25³ =
  31. 31.68³ =
  32. 32.43³ =
  33. 33.51³ =
  34. 34.23³ =
  35. 35.31³ =
  36. 36.34³ =
  37. 37.83³ =
  38. 38.77³ =
  39. 39.41³ =
  40. 40.31³ =

Answer key

  1. 166375
  2. 79507
  3. 1331
  4. 54872
  5. 753571
  6. 68921
  7. 571787
  8. 421875
  9. 68921
  10. 5832
  11. 4913
  12. 103823
  13. 300763
  14. 474552
  15. 17576
  16. 185193
  17. 456533
  18. 357911
  19. 166375
  20. 658503
  21. 24389
  22. 24389
  23. 753571
  24. 250047
  25. 140608
  26. 42875
  27. 250047
  28. 50653
  29. 6859
  30. 15625
  31. 314432
  32. 79507
  33. 132651
  34. 12167
  35. 29791
  36. 39304
  37. 571787
  38. 456533
  39. 68921
  40. 29791

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