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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 180 · 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. 1.68³ =
  2. 2.21³ =
  3. 3.36³ =
  4. 4.24³ =
  5. 5.61³ =
  6. 6.68³ =
  7. 7.59³ =
  8. 8.63³ =
  9. 9.72³ =
  10. 10.56³ =
  11. 11.34³ =
  12. 12.41³ =
  13. 13.66³ =
  14. 14.86³ =
  15. 15.25³ =
  16. 16.22³ =
  17. 17.89³ =
  18. 18.17³ =
  19. 19.76³ =
  20. 20.97³ =
  21. 21.14³ =
  22. 22.76³ =
  23. 23.12³ =
  24. 24.35³ =
  25. 25.77³ =
  26. 26.33³ =
  27. 27.44³ =
  28. 28.28³ =
  29. 29.31³ =
  30. 30.68³ =
  31. 31.26³ =
  32. 32.85³ =
  33. 33.34³ =
  34. 34.82³ =
  35. 35.84³ =
  36. 36.89³ =
  37. 37.27³ =
  38. 38.21³ =
  39. 39.64³ =
  40. 40.65³ =

Answer key

  1. 314432
  2. 9261
  3. 46656
  4. 13824
  5. 226981
  6. 314432
  7. 205379
  8. 250047
  9. 373248
  10. 175616
  11. 39304
  12. 68921
  13. 287496
  14. 636056
  15. 15625
  16. 10648
  17. 704969
  18. 4913
  19. 438976
  20. 912673
  21. 2744
  22. 438976
  23. 1728
  24. 42875
  25. 456533
  26. 35937
  27. 85184
  28. 21952
  29. 29791
  30. 314432
  31. 17576
  32. 614125
  33. 39304
  34. 551368
  35. 592704
  36. 704969
  37. 19683
  38. 9261
  39. 262144
  40. 274625

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