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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 510 · 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. 1.42³ =
  2. 2.42³ =
  3. 3.79³ =
  4. 4.11³ =
  5. 5.71³ =
  6. 6.96³ =
  7. 7.29³ =
  8. 8.85³ =
  9. 9.97³ =
  10. 10.69³ =
  11. 11.24³ =
  12. 12.78³ =
  13. 13.56³ =
  14. 14.45³ =
  15. 15.21³ =
  16. 16.81³ =
  17. 17.82³ =
  18. 18.66³ =
  19. 19.88³ =
  20. 20.98³ =
  21. 21.31³ =
  22. 22.69³ =
  23. 23.73³ =
  24. 24.13³ =
  25. 25.81³ =
  26. 26.39³ =
  27. 27.28³ =
  28. 28.21³ =
  29. 29.87³ =
  30. 30.89³ =
  31. 31.86³ =
  32. 32.84³ =
  33. 33.84³ =
  34. 34.69³ =
  35. 35.31³ =
  36. 36.56³ =
  37. 37.71³ =
  38. 38.43³ =
  39. 39.24³ =
  40. 40.13³ =

Answer key

  1. 74088
  2. 74088
  3. 493039
  4. 1331
  5. 357911
  6. 884736
  7. 24389
  8. 614125
  9. 912673
  10. 328509
  11. 13824
  12. 474552
  13. 175616
  14. 91125
  15. 9261
  16. 531441
  17. 551368
  18. 287496
  19. 681472
  20. 941192
  21. 29791
  22. 328509
  23. 389017
  24. 2197
  25. 531441
  26. 59319
  27. 21952
  28. 9261
  29. 658503
  30. 704969
  31. 636056
  32. 592704
  33. 592704
  34. 328509
  35. 29791
  36. 175616
  37. 357911
  38. 79507
  39. 13824
  40. 2197

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