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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 278 · 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. 1.92³ =
  2. 2.33³ =
  3. 3.68³ =
  4. 4.31³ =
  5. 5.83³ =
  6. 6.81³ =
  7. 7.38³ =
  8. 8.48³ =
  9. 9.61³ =
  10. 10.12³ =
  11. 11.37³ =
  12. 12.73³ =
  13. 13.23³ =
  14. 14.39³ =
  15. 15.15³ =
  16. 16.76³ =
  17. 17.98³ =
  18. 18.65³ =
  19. 19.12³ =
  20. 20.99³ =
  21. 21.12³ =
  22. 22.71³ =
  23. 23.51³ =
  24. 24.16³ =
  25. 25.93³ =
  26. 26.14³ =
  27. 27.27³ =
  28. 28.31³ =
  29. 29.71³ =
  30. 30.22³ =
  31. 31.19³ =
  32. 32.77³ =
  33. 33.91³ =
  34. 34.98³ =
  35. 35.18³ =
  36. 36.16³ =
  37. 37.41³ =
  38. 38.24³ =
  39. 39.91³ =
  40. 40.51³ =

Answer key

  1. 778688
  2. 35937
  3. 314432
  4. 29791
  5. 571787
  6. 531441
  7. 54872
  8. 110592
  9. 226981
  10. 1728
  11. 50653
  12. 389017
  13. 12167
  14. 59319
  15. 3375
  16. 438976
  17. 941192
  18. 274625
  19. 1728
  20. 970299
  21. 1728
  22. 357911
  23. 132651
  24. 4096
  25. 804357
  26. 2744
  27. 19683
  28. 29791
  29. 357911
  30. 10648
  31. 6859
  32. 456533
  33. 753571
  34. 941192
  35. 5832
  36. 4096
  37. 68921
  38. 13824
  39. 753571
  40. 132651

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