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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 715 · 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. 1.22³ =
  2. 2.24³ =
  3. 3.92³ =
  4. 4.41³ =
  5. 5.56³ =
  6. 6.31³ =
  7. 7.82³ =
  8. 8.37³ =
  9. 9.76³ =
  10. 10.97³ =
  11. 11.69³ =
  12. 12.24³ =
  13. 13.14³ =
  14. 14.31³ =
  15. 15.27³ =
  16. 16.14³ =
  17. 17.46³ =
  18. 18.84³ =
  19. 19.13³ =
  20. 20.31³ =
  21. 21.88³ =
  22. 22.71³ =
  23. 23.73³ =
  24. 24.95³ =
  25. 25.88³ =
  26. 26.34³ =
  27. 27.21³ =
  28. 28.41³ =
  29. 29.74³ =
  30. 30.47³ =
  31. 31.76³ =
  32. 32.14³ =
  33. 33.95³ =
  34. 34.12³ =
  35. 35.33³ =
  36. 36.24³ =
  37. 37.13³ =
  38. 38.17³ =
  39. 39.78³ =
  40. 40.29³ =

Answer key

  1. 10648
  2. 13824
  3. 778688
  4. 68921
  5. 175616
  6. 29791
  7. 551368
  8. 50653
  9. 438976
  10. 912673
  11. 328509
  12. 13824
  13. 2744
  14. 29791
  15. 19683
  16. 2744
  17. 97336
  18. 592704
  19. 2197
  20. 29791
  21. 681472
  22. 357911
  23. 389017
  24. 857375
  25. 681472
  26. 39304
  27. 9261
  28. 68921
  29. 405224
  30. 103823
  31. 438976
  32. 2744
  33. 857375
  34. 1728
  35. 35937
  36. 13824
  37. 2197
  38. 4913
  39. 474552
  40. 24389

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