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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 957 · 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. 2.39³ =
  3. 3.17³ =
  4. 4.69³ =
  5. 5.92³ =
  6. 6.35³ =
  7. 7.11³ =
  8. 8.81³ =
  9. 9.69³ =
  10. 10.61³ =
  11. 11.13³ =
  12. 12.44³ =
  13. 13.61³ =
  14. 14.66³ =
  15. 15.31³ =
  16. 16.89³ =
  17. 17.44³ =
  18. 18.66³ =
  19. 19.93³ =
  20. 20.53³ =
  21. 21.21³ =
  22. 22.13³ =
  23. 23.77³ =
  24. 24.33³ =
  25. 25.72³ =
  26. 26.36³ =
  27. 27.68³ =
  28. 28.92³ =
  29. 29.35³ =
  30. 30.78³ =
  31. 31.29³ =
  32. 32.13³ =
  33. 33.71³ =
  34. 34.65³ =
  35. 35.87³ =
  36. 36.25³ =
  37. 37.33³ =
  38. 38.35³ =
  39. 39.93³ =
  40. 40.27³ =

Answer key

  1. 421875
  2. 59319
  3. 4913
  4. 328509
  5. 778688
  6. 42875
  7. 1331
  8. 531441
  9. 328509
  10. 226981
  11. 2197
  12. 85184
  13. 226981
  14. 287496
  15. 29791
  16. 704969
  17. 85184
  18. 287496
  19. 804357
  20. 148877
  21. 9261
  22. 2197
  23. 456533
  24. 35937
  25. 373248
  26. 46656
  27. 314432
  28. 778688
  29. 42875
  30. 474552
  31. 24389
  32. 2197
  33. 357911
  34. 274625
  35. 658503
  36. 15625
  37. 35937
  38. 42875
  39. 804357
  40. 19683

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