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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 723 · 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. 1.91³ =
  2. 2.21³ =
  3. 3.49³ =
  4. 4.55³ =
  5. 5.31³ =
  6. 6.53³ =
  7. 7.17³ =
  8. 8.38³ =
  9. 9.51³ =
  10. 10.31³ =
  11. 11.53³ =
  12. 12.32³ =
  13. 13.87³ =
  14. 14.91³ =
  15. 15.52³ =
  16. 16.92³ =
  17. 17.82³ =
  18. 18.92³ =
  19. 19.46³ =
  20. 20.75³ =
  21. 21.34³ =
  22. 22.77³ =
  23. 23.35³ =
  24. 24.53³ =
  25. 25.51³ =
  26. 26.73³ =
  27. 27.95³ =
  28. 28.72³ =
  29. 29.13³ =
  30. 30.83³ =
  31. 31.21³ =
  32. 32.13³ =
  33. 33.14³ =
  34. 34.23³ =
  35. 35.43³ =
  36. 36.76³ =
  37. 37.48³ =
  38. 38.98³ =
  39. 39.14³ =
  40. 40.73³ =

Answer key

  1. 753571
  2. 9261
  3. 117649
  4. 166375
  5. 29791
  6. 148877
  7. 4913
  8. 54872
  9. 132651
  10. 29791
  11. 148877
  12. 32768
  13. 658503
  14. 753571
  15. 140608
  16. 778688
  17. 551368
  18. 778688
  19. 97336
  20. 421875
  21. 39304
  22. 456533
  23. 42875
  24. 148877
  25. 132651
  26. 389017
  27. 857375
  28. 373248
  29. 2197
  30. 571787
  31. 9261
  32. 2197
  33. 2744
  34. 12167
  35. 79507
  36. 438976
  37. 110592
  38. 941192
  39. 2744
  40. 389017

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