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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 906 · 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. 1.31³ =
  2. 2.47³ =
  3. 3.94³ =
  4. 4.63³ =
  5. 5.13³ =
  6. 6.16³ =
  7. 7.81³ =
  8. 8.27³ =
  9. 9.58³ =
  10. 10.34³ =
  11. 11.12³ =
  12. 12.29³ =
  13. 13.61³ =
  14. 14.48³ =
  15. 15.71³ =
  16. 16.96³ =
  17. 17.71³ =
  18. 18.55³ =
  19. 19.21³ =
  20. 20.72³ =
  21. 21.66³ =
  22. 22.51³ =
  23. 23.71³ =
  24. 24.95³ =
  25. 25.67³ =
  26. 26.11³ =
  27. 27.81³ =
  28. 28.72³ =
  29. 29.15³ =
  30. 30.35³ =
  31. 31.17³ =
  32. 32.13³ =
  33. 33.41³ =
  34. 34.77³ =
  35. 35.94³ =
  36. 36.89³ =
  37. 37.32³ =
  38. 38.24³ =
  39. 39.56³ =
  40. 40.21³ =

Answer key

  1. 29791
  2. 103823
  3. 830584
  4. 250047
  5. 2197
  6. 4096
  7. 531441
  8. 19683
  9. 195112
  10. 39304
  11. 1728
  12. 24389
  13. 226981
  14. 110592
  15. 357911
  16. 884736
  17. 357911
  18. 166375
  19. 9261
  20. 373248
  21. 287496
  22. 132651
  23. 357911
  24. 857375
  25. 300763
  26. 1331
  27. 531441
  28. 373248
  29. 3375
  30. 42875
  31. 4913
  32. 2197
  33. 68921
  34. 456533
  35. 830584
  36. 704969
  37. 32768
  38. 13824
  39. 175616
  40. 9261

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