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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 910 · 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. 1.75³ =
  2. 2.19³ =
  3. 3.21³ =
  4. 4.79³ =
  5. 5.35³ =
  6. 6.61³ =
  7. 7.22³ =
  8. 8.55³ =
  9. 9.53³ =
  10. 10.97³ =
  11. 11.19³ =
  12. 12.56³ =
  13. 13.69³ =
  14. 14.86³ =
  15. 15.61³ =
  16. 16.19³ =
  17. 17.24³ =
  18. 18.71³ =
  19. 19.25³ =
  20. 20.97³ =
  21. 21.38³ =
  22. 22.36³ =
  23. 23.66³ =
  24. 24.84³ =
  25. 25.44³ =
  26. 26.98³ =
  27. 27.71³ =
  28. 28.41³ =
  29. 29.41³ =
  30. 30.32³ =
  31. 31.33³ =
  32. 32.26³ =
  33. 33.27³ =
  34. 34.93³ =
  35. 35.18³ =
  36. 36.63³ =
  37. 37.27³ =
  38. 38.56³ =
  39. 39.84³ =
  40. 40.31³ =

Answer key

  1. 421875
  2. 6859
  3. 9261
  4. 493039
  5. 42875
  6. 226981
  7. 10648
  8. 166375
  9. 148877
  10. 912673
  11. 6859
  12. 175616
  13. 328509
  14. 636056
  15. 226981
  16. 6859
  17. 13824
  18. 357911
  19. 15625
  20. 912673
  21. 54872
  22. 46656
  23. 287496
  24. 592704
  25. 85184
  26. 941192
  27. 357911
  28. 68921
  29. 68921
  30. 32768
  31. 35937
  32. 17576
  33. 19683
  34. 804357
  35. 5832
  36. 250047
  37. 19683
  38. 175616
  39. 592704
  40. 29791

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