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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 808 · 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. 1.61³ =
  2. 2.31³ =
  3. 3.13³ =
  4. 4.14³ =
  5. 5.75³ =
  6. 6.21³ =
  7. 7.88³ =
  8. 8.63³ =
  9. 9.22³ =
  10. 10.66³ =
  11. 11.61³ =
  12. 12.86³ =
  13. 13.54³ =
  14. 14.87³ =
  15. 15.35³ =
  16. 16.56³ =
  17. 17.43³ =
  18. 18.16³ =
  19. 19.92³ =
  20. 20.62³ =
  21. 21.64³ =
  22. 22.29³ =
  23. 23.93³ =
  24. 24.61³ =
  25. 25.24³ =
  26. 26.38³ =
  27. 27.14³ =
  28. 28.25³ =
  29. 29.72³ =
  30. 30.96³ =
  31. 31.65³ =
  32. 32.51³ =
  33. 33.77³ =
  34. 34.48³ =
  35. 35.56³ =
  36. 36.34³ =
  37. 37.82³ =
  38. 38.81³ =
  39. 39.62³ =
  40. 40.25³ =

Answer key

  1. 226981
  2. 29791
  3. 2197
  4. 2744
  5. 421875
  6. 9261
  7. 681472
  8. 250047
  9. 10648
  10. 287496
  11. 226981
  12. 636056
  13. 157464
  14. 658503
  15. 42875
  16. 175616
  17. 79507
  18. 4096
  19. 778688
  20. 238328
  21. 262144
  22. 24389
  23. 804357
  24. 226981
  25. 13824
  26. 54872
  27. 2744
  28. 15625
  29. 373248
  30. 884736
  31. 274625
  32. 132651
  33. 456533
  34. 110592
  35. 175616
  36. 39304
  37. 551368
  38. 531441
  39. 238328
  40. 15625

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