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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 291 · 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. 1.43³ =
  2. 2.21³ =
  3. 3.18³ =
  4. 4.37³ =
  5. 5.22³ =
  6. 6.42³ =
  7. 7.12³ =
  8. 8.23³ =
  9. 9.54³ =
  10. 10.33³ =
  11. 11.54³ =
  12. 12.32³ =
  13. 13.12³ =
  14. 14.23³ =
  15. 15.72³ =
  16. 16.12³ =
  17. 17.21³ =
  18. 18.11³ =
  19. 19.24³ =
  20. 20.17³ =
  21. 21.22³ =
  22. 22.16³ =
  23. 23.63³ =
  24. 24.57³ =
  25. 25.39³ =
  26. 26.35³ =
  27. 27.13³ =
  28. 28.31³ =
  29. 29.68³ =
  30. 30.91³ =
  31. 31.84³ =
  32. 32.59³ =
  33. 33.84³ =
  34. 34.31³ =
  35. 35.32³ =
  36. 36.52³ =
  37. 37.21³ =
  38. 38.43³ =
  39. 39.39³ =
  40. 40.75³ =

Answer key

  1. 79507
  2. 9261
  3. 5832
  4. 50653
  5. 10648
  6. 74088
  7. 1728
  8. 12167
  9. 157464
  10. 35937
  11. 157464
  12. 32768
  13. 1728
  14. 12167
  15. 373248
  16. 1728
  17. 9261
  18. 1331
  19. 13824
  20. 4913
  21. 10648
  22. 4096
  23. 250047
  24. 185193
  25. 59319
  26. 42875
  27. 2197
  28. 29791
  29. 314432
  30. 753571
  31. 592704
  32. 205379
  33. 592704
  34. 29791
  35. 32768
  36. 140608
  37. 9261
  38. 79507
  39. 59319
  40. 421875

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