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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 350 · 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. 1.69³ =
  2. 2.48³ =
  3. 3.91³ =
  4. 4.53³ =
  5. 5.63³ =
  6. 6.13³ =
  7. 7.65³ =
  8. 8.91³ =
  9. 9.96³ =
  10. 10.14³ =
  11. 11.11³ =
  12. 12.77³ =
  13. 13.38³ =
  14. 14.29³ =
  15. 15.79³ =
  16. 16.46³ =
  17. 17.92³ =
  18. 18.73³ =
  19. 19.41³ =
  20. 20.81³ =
  21. 21.38³ =
  22. 22.26³ =
  23. 23.76³ =
  24. 24.89³ =
  25. 25.34³ =
  26. 26.31³ =
  27. 27.78³ =
  28. 28.15³ =
  29. 29.87³ =
  30. 30.79³ =
  31. 31.17³ =
  32. 32.54³ =
  33. 33.52³ =
  34. 34.81³ =
  35. 35.23³ =
  36. 36.52³ =
  37. 37.51³ =
  38. 38.67³ =
  39. 39.11³ =
  40. 40.23³ =

Answer key

  1. 328509
  2. 110592
  3. 753571
  4. 148877
  5. 250047
  6. 2197
  7. 274625
  8. 753571
  9. 884736
  10. 2744
  11. 1331
  12. 456533
  13. 54872
  14. 24389
  15. 493039
  16. 97336
  17. 778688
  18. 389017
  19. 68921
  20. 531441
  21. 54872
  22. 17576
  23. 438976
  24. 704969
  25. 39304
  26. 29791
  27. 474552
  28. 3375
  29. 658503
  30. 493039
  31. 4913
  32. 157464
  33. 140608
  34. 531441
  35. 12167
  36. 140608
  37. 132651
  38. 300763
  39. 1331
  40. 12167

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