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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 94 · 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. 1.36³ =
  2. 2.75³ =
  3. 3.31³ =
  4. 4.17³ =
  5. 5.36³ =
  6. 6.26³ =
  7. 7.72³ =
  8. 8.75³ =
  9. 9.26³ =
  10. 10.76³ =
  11. 11.37³ =
  12. 12.15³ =
  13. 13.85³ =
  14. 14.35³ =
  15. 15.21³ =
  16. 16.68³ =
  17. 17.34³ =
  18. 18.75³ =
  19. 19.18³ =
  20. 20.93³ =
  21. 21.61³ =
  22. 22.18³ =
  23. 23.69³ =
  24. 24.15³ =
  25. 25.84³ =
  26. 26.66³ =
  27. 27.81³ =
  28. 28.21³ =
  29. 29.21³ =
  30. 30.31³ =
  31. 31.21³ =
  32. 32.65³ =
  33. 33.77³ =
  34. 34.72³ =
  35. 35.52³ =
  36. 36.16³ =
  37. 37.31³ =
  38. 38.63³ =
  39. 39.72³ =
  40. 40.84³ =

Answer key

  1. 46656
  2. 421875
  3. 29791
  4. 4913
  5. 46656
  6. 17576
  7. 373248
  8. 421875
  9. 17576
  10. 438976
  11. 50653
  12. 3375
  13. 614125
  14. 42875
  15. 9261
  16. 314432
  17. 39304
  18. 421875
  19. 5832
  20. 804357
  21. 226981
  22. 5832
  23. 328509
  24. 3375
  25. 592704
  26. 287496
  27. 531441
  28. 9261
  29. 9261
  30. 29791
  31. 9261
  32. 274625
  33. 456533
  34. 373248
  35. 140608
  36. 4096
  37. 29791
  38. 250047
  39. 373248
  40. 592704

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