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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 280 · 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. 1.71³ =
  2. 2.13³ =
  3. 3.82³ =
  4. 4.29³ =
  5. 5.18³ =
  6. 6.66³ =
  7. 7.46³ =
  8. 8.23³ =
  9. 9.66³ =
  10. 10.61³ =
  11. 11.56³ =
  12. 12.34³ =
  13. 13.61³ =
  14. 14.58³ =
  15. 15.92³ =
  16. 16.63³ =
  17. 17.21³ =
  18. 18.81³ =
  19. 19.92³ =
  20. 20.42³ =
  21. 21.58³ =
  22. 22.31³ =
  23. 23.61³ =
  24. 24.86³ =
  25. 25.56³ =
  26. 26.54³ =
  27. 27.86³ =
  28. 28.85³ =
  29. 29.34³ =
  30. 30.45³ =
  31. 31.98³ =
  32. 32.35³ =
  33. 33.51³ =
  34. 34.81³ =
  35. 35.26³ =
  36. 36.26³ =
  37. 37.33³ =
  38. 38.83³ =
  39. 39.31³ =
  40. 40.64³ =

Answer key

  1. 357911
  2. 2197
  3. 551368
  4. 24389
  5. 5832
  6. 287496
  7. 97336
  8. 12167
  9. 287496
  10. 226981
  11. 175616
  12. 39304
  13. 226981
  14. 195112
  15. 778688
  16. 250047
  17. 9261
  18. 531441
  19. 778688
  20. 74088
  21. 195112
  22. 29791
  23. 226981
  24. 636056
  25. 175616
  26. 157464
  27. 636056
  28. 614125
  29. 39304
  30. 91125
  31. 941192
  32. 42875
  33. 132651
  34. 531441
  35. 17576
  36. 17576
  37. 35937
  38. 571787
  39. 29791
  40. 262144

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