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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 247 · 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. 1.27³ =
  2. 2.12³ =
  3. 3.92³ =
  4. 4.39³ =
  5. 5.21³ =
  6. 6.54³ =
  7. 7.12³ =
  8. 8.43³ =
  9. 9.69³ =
  10. 10.26³ =
  11. 11.36³ =
  12. 12.88³ =
  13. 13.49³ =
  14. 14.69³ =
  15. 15.77³ =
  16. 16.31³ =
  17. 17.98³ =
  18. 18.37³ =
  19. 19.23³ =
  20. 20.28³ =
  21. 21.39³ =
  22. 22.56³ =
  23. 23.94³ =
  24. 24.76³ =
  25. 25.22³ =
  26. 26.16³ =
  27. 27.82³ =
  28. 28.92³ =
  29. 29.31³ =
  30. 30.91³ =
  31. 31.36³ =
  32. 32.52³ =
  33. 33.35³ =
  34. 34.99³ =
  35. 35.21³ =
  36. 36.23³ =
  37. 37.85³ =
  38. 38.43³ =
  39. 39.83³ =
  40. 40.54³ =

Answer key

  1. 19683
  2. 1728
  3. 778688
  4. 59319
  5. 9261
  6. 157464
  7. 1728
  8. 79507
  9. 328509
  10. 17576
  11. 46656
  12. 681472
  13. 117649
  14. 328509
  15. 456533
  16. 29791
  17. 941192
  18. 50653
  19. 12167
  20. 21952
  21. 59319
  22. 175616
  23. 830584
  24. 438976
  25. 10648
  26. 4096
  27. 551368
  28. 778688
  29. 29791
  30. 753571
  31. 46656
  32. 140608
  33. 42875
  34. 970299
  35. 9261
  36. 12167
  37. 614125
  38. 79507
  39. 571787
  40. 157464

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