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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 486 · 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. 1.63³ =
  2. 2.96³ =
  3. 3.71³ =
  4. 4.31³ =
  5. 5.46³ =
  6. 6.18³ =
  7. 7.68³ =
  8. 8.86³ =
  9. 9.52³ =
  10. 10.44³ =
  11. 11.26³ =
  12. 12.87³ =
  13. 13.81³ =
  14. 14.51³ =
  15. 15.54³ =
  16. 16.21³ =
  17. 17.81³ =
  18. 18.74³ =
  19. 19.21³ =
  20. 20.56³ =
  21. 21.37³ =
  22. 22.84³ =
  23. 23.17³ =
  24. 24.43³ =
  25. 25.32³ =
  26. 26.81³ =
  27. 27.57³ =
  28. 28.36³ =
  29. 29.47³ =
  30. 30.25³ =
  31. 31.65³ =
  32. 32.49³ =
  33. 33.21³ =
  34. 34.33³ =
  35. 35.48³ =
  36. 36.28³ =
  37. 37.76³ =
  38. 38.81³ =
  39. 39.19³ =
  40. 40.71³ =

Answer key

  1. 250047
  2. 884736
  3. 357911
  4. 29791
  5. 97336
  6. 5832
  7. 314432
  8. 636056
  9. 140608
  10. 85184
  11. 17576
  12. 658503
  13. 531441
  14. 132651
  15. 157464
  16. 9261
  17. 531441
  18. 405224
  19. 9261
  20. 175616
  21. 50653
  22. 592704
  23. 4913
  24. 79507
  25. 32768
  26. 531441
  27. 185193
  28. 46656
  29. 103823
  30. 15625
  31. 274625
  32. 117649
  33. 9261
  34. 35937
  35. 110592
  36. 21952
  37. 438976
  38. 531441
  39. 6859
  40. 357911

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