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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 424 · 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. 1.19³ =
  2. 2.67³ =
  3. 3.48³ =
  4. 4.77³ =
  5. 5.27³ =
  6. 6.81³ =
  7. 7.72³ =
  8. 8.34³ =
  9. 9.75³ =
  10. 10.61³ =
  11. 11.98³ =
  12. 12.57³ =
  13. 13.61³ =
  14. 14.36³ =
  15. 15.24³ =
  16. 16.73³ =
  17. 17.48³ =
  18. 18.55³ =
  19. 19.75³ =
  20. 20.72³ =
  21. 21.13³ =
  22. 22.41³ =
  23. 23.17³ =
  24. 24.22³ =
  25. 25.94³ =
  26. 26.14³ =
  27. 27.31³ =
  28. 28.25³ =
  29. 29.54³ =
  30. 30.18³ =
  31. 31.77³ =
  32. 32.12³ =
  33. 33.21³ =
  34. 34.61³ =
  35. 35.95³ =
  36. 36.26³ =
  37. 37.79³ =
  38. 38.46³ =
  39. 39.98³ =
  40. 40.55³ =

Answer key

  1. 6859
  2. 300763
  3. 110592
  4. 456533
  5. 19683
  6. 531441
  7. 373248
  8. 39304
  9. 421875
  10. 226981
  11. 941192
  12. 185193
  13. 226981
  14. 46656
  15. 13824
  16. 389017
  17. 110592
  18. 166375
  19. 421875
  20. 373248
  21. 2197
  22. 68921
  23. 4913
  24. 10648
  25. 830584
  26. 2744
  27. 29791
  28. 15625
  29. 157464
  30. 5832
  31. 456533
  32. 1728
  33. 9261
  34. 226981
  35. 857375
  36. 17576
  37. 493039
  38. 97336
  39. 941192
  40. 166375

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