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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 869 · 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. 1.67³ =
  2. 2.83³ =
  3. 3.12³ =
  4. 4.44³ =
  5. 5.48³ =
  6. 6.53³ =
  7. 7.98³ =
  8. 8.13³ =
  9. 9.16³ =
  10. 10.79³ =
  11. 11.22³ =
  12. 12.45³ =
  13. 13.46³ =
  14. 14.43³ =
  15. 15.23³ =
  16. 16.73³ =
  17. 17.34³ =
  18. 18.88³ =
  19. 19.41³ =
  20. 20.62³ =
  21. 21.43³ =
  22. 22.66³ =
  23. 23.35³ =
  24. 24.46³ =
  25. 25.81³ =
  26. 26.34³ =
  27. 27.97³ =
  28. 28.29³ =
  29. 29.45³ =
  30. 30.68³ =
  31. 31.43³ =
  32. 32.85³ =
  33. 33.29³ =
  34. 34.39³ =
  35. 35.96³ =
  36. 36.82³ =
  37. 37.84³ =
  38. 38.13³ =
  39. 39.95³ =
  40. 40.47³ =

Answer key

  1. 300763
  2. 571787
  3. 1728
  4. 85184
  5. 110592
  6. 148877
  7. 941192
  8. 2197
  9. 4096
  10. 493039
  11. 10648
  12. 91125
  13. 97336
  14. 79507
  15. 12167
  16. 389017
  17. 39304
  18. 681472
  19. 68921
  20. 238328
  21. 79507
  22. 287496
  23. 42875
  24. 97336
  25. 531441
  26. 39304
  27. 912673
  28. 24389
  29. 91125
  30. 314432
  31. 79507
  32. 614125
  33. 24389
  34. 59319
  35. 884736
  36. 551368
  37. 592704
  38. 2197
  39. 857375
  40. 103823

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