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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 693 · 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. 1.32³ =
  2. 2.88³ =
  3. 3.63³ =
  4. 4.31³ =
  5. 5.27³ =
  6. 6.71³ =
  7. 7.68³ =
  8. 8.33³ =
  9. 9.16³ =
  10. 10.96³ =
  11. 11.41³ =
  12. 12.71³ =
  13. 13.27³ =
  14. 14.36³ =
  15. 15.78³ =
  16. 16.11³ =
  17. 17.71³ =
  18. 18.56³ =
  19. 19.77³ =
  20. 20.86³ =
  21. 21.76³ =
  22. 22.39³ =
  23. 23.41³ =
  24. 24.22³ =
  25. 25.27³ =
  26. 26.95³ =
  27. 27.94³ =
  28. 28.55³ =
  29. 29.66³ =
  30. 30.76³ =
  31. 31.71³ =
  32. 32.54³ =
  33. 33.81³ =
  34. 34.69³ =
  35. 35.71³ =
  36. 36.85³ =
  37. 37.22³ =
  38. 38.51³ =
  39. 39.35³ =
  40. 40.54³ =

Answer key

  1. 32768
  2. 681472
  3. 250047
  4. 29791
  5. 19683
  6. 357911
  7. 314432
  8. 35937
  9. 4096
  10. 884736
  11. 68921
  12. 357911
  13. 19683
  14. 46656
  15. 474552
  16. 1331
  17. 357911
  18. 175616
  19. 456533
  20. 636056
  21. 438976
  22. 59319
  23. 68921
  24. 10648
  25. 19683
  26. 857375
  27. 830584
  28. 166375
  29. 287496
  30. 438976
  31. 357911
  32. 157464
  33. 531441
  34. 328509
  35. 357911
  36. 614125
  37. 10648
  38. 132651
  39. 42875
  40. 157464

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