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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 511 · 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. 1.31³ =
  2. 2.66³ =
  3. 3.14³ =
  4. 4.16³ =
  5. 5.29³ =
  6. 6.64³ =
  7. 7.94³ =
  8. 8.38³ =
  9. 9.27³ =
  10. 10.68³ =
  11. 11.12³ =
  12. 12.91³ =
  13. 13.66³ =
  14. 14.61³ =
  15. 15.42³ =
  16. 16.79³ =
  17. 17.51³ =
  18. 18.68³ =
  19. 19.37³ =
  20. 20.36³ =
  21. 21.84³ =
  22. 22.88³ =
  23. 23.96³ =
  24. 24.15³ =
  25. 25.15³ =
  26. 26.53³ =
  27. 27.63³ =
  28. 28.45³ =
  29. 29.46³ =
  30. 30.81³ =
  31. 31.73³ =
  32. 32.26³ =
  33. 33.15³ =
  34. 34.71³ =
  35. 35.91³ =
  36. 36.51³ =
  37. 37.38³ =
  38. 38.41³ =
  39. 39.21³ =
  40. 40.14³ =

Answer key

  1. 29791
  2. 287496
  3. 2744
  4. 4096
  5. 24389
  6. 262144
  7. 830584
  8. 54872
  9. 19683
  10. 314432
  11. 1728
  12. 753571
  13. 287496
  14. 226981
  15. 74088
  16. 493039
  17. 132651
  18. 314432
  19. 50653
  20. 46656
  21. 592704
  22. 681472
  23. 884736
  24. 3375
  25. 3375
  26. 148877
  27. 250047
  28. 91125
  29. 97336
  30. 531441
  31. 389017
  32. 17576
  33. 3375
  34. 357911
  35. 753571
  36. 132651
  37. 54872
  38. 68921
  39. 9261
  40. 2744

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