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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 252 · 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. 1.12³ =
  2. 2.79³ =
  3. 3.61³ =
  4. 4.76³ =
  5. 5.81³ =
  6. 6.37³ =
  7. 7.29³ =
  8. 8.14³ =
  9. 9.47³ =
  10. 10.95³ =
  11. 11.57³ =
  12. 12.65³ =
  13. 13.98³ =
  14. 14.36³ =
  15. 15.93³ =
  16. 16.87³ =
  17. 17.19³ =
  18. 18.81³ =
  19. 19.31³ =
  20. 20.93³ =
  21. 21.71³ =
  22. 22.51³ =
  23. 23.65³ =
  24. 24.73³ =
  25. 25.25³ =
  26. 26.29³ =
  27. 27.25³ =
  28. 28.84³ =
  29. 29.63³ =
  30. 30.85³ =
  31. 31.12³ =
  32. 32.52³ =
  33. 33.13³ =
  34. 34.78³ =
  35. 35.98³ =
  36. 36.74³ =
  37. 37.41³ =
  38. 38.51³ =
  39. 39.54³ =
  40. 40.19³ =

Answer key

  1. 1728
  2. 493039
  3. 226981
  4. 438976
  5. 531441
  6. 50653
  7. 24389
  8. 2744
  9. 103823
  10. 857375
  11. 185193
  12. 274625
  13. 941192
  14. 46656
  15. 804357
  16. 658503
  17. 6859
  18. 531441
  19. 29791
  20. 804357
  21. 357911
  22. 132651
  23. 274625
  24. 389017
  25. 15625
  26. 24389
  27. 15625
  28. 592704
  29. 250047
  30. 614125
  31. 1728
  32. 140608
  33. 2197
  34. 474552
  35. 941192
  36. 405224
  37. 68921
  38. 132651
  39. 157464
  40. 6859

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