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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 215 · 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. 1.99³ =
  2. 2.11³ =
  3. 3.39³ =
  4. 4.72³ =
  5. 5.26³ =
  6. 6.13³ =
  7. 7.65³ =
  8. 8.18³ =
  9. 9.34³ =
  10. 10.96³ =
  11. 11.24³ =
  12. 12.66³ =
  13. 13.83³ =
  14. 14.87³ =
  15. 15.53³ =
  16. 16.81³ =
  17. 17.32³ =
  18. 18.48³ =
  19. 19.29³ =
  20. 20.81³ =
  21. 21.46³ =
  22. 22.76³ =
  23. 23.77³ =
  24. 24.37³ =
  25. 25.79³ =
  26. 26.31³ =
  27. 27.12³ =
  28. 28.14³ =
  29. 29.55³ =
  30. 30.39³ =
  31. 31.77³ =
  32. 32.22³ =
  33. 33.34³ =
  34. 34.26³ =
  35. 35.93³ =
  36. 36.21³ =
  37. 37.45³ =
  38. 38.58³ =
  39. 39.81³ =
  40. 40.71³ =

Answer key

  1. 970299
  2. 1331
  3. 59319
  4. 373248
  5. 17576
  6. 2197
  7. 274625
  8. 5832
  9. 39304
  10. 884736
  11. 13824
  12. 287496
  13. 571787
  14. 658503
  15. 148877
  16. 531441
  17. 32768
  18. 110592
  19. 24389
  20. 531441
  21. 97336
  22. 438976
  23. 456533
  24. 50653
  25. 493039
  26. 29791
  27. 1728
  28. 2744
  29. 166375
  30. 59319
  31. 456533
  32. 10648
  33. 39304
  34. 17576
  35. 804357
  36. 9261
  37. 91125
  38. 195112
  39. 531441
  40. 357911

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