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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 697 · 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. 1.82³ =
  2. 2.31³ =
  3. 3.97³ =
  4. 4.83³ =
  5. 5.69³ =
  6. 6.71³ =
  7. 7.21³ =
  8. 8.25³ =
  9. 9.71³ =
  10. 10.72³ =
  11. 11.34³ =
  12. 12.28³ =
  13. 13.18³ =
  14. 14.37³ =
  15. 15.55³ =
  16. 16.45³ =
  17. 17.67³ =
  18. 18.17³ =
  19. 19.57³ =
  20. 20.38³ =
  21. 21.51³ =
  22. 22.94³ =
  23. 23.22³ =
  24. 24.96³ =
  25. 25.12³ =
  26. 26.18³ =
  27. 27.87³ =
  28. 28.19³ =
  29. 29.12³ =
  30. 30.22³ =
  31. 31.83³ =
  32. 32.81³ =
  33. 33.34³ =
  34. 34.14³ =
  35. 35.16³ =
  36. 36.73³ =
  37. 37.91³ =
  38. 38.39³ =
  39. 39.36³ =
  40. 40.62³ =

Answer key

  1. 551368
  2. 29791
  3. 912673
  4. 571787
  5. 328509
  6. 357911
  7. 9261
  8. 15625
  9. 357911
  10. 373248
  11. 39304
  12. 21952
  13. 5832
  14. 50653
  15. 166375
  16. 91125
  17. 300763
  18. 4913
  19. 185193
  20. 54872
  21. 132651
  22. 830584
  23. 10648
  24. 884736
  25. 1728
  26. 5832
  27. 658503
  28. 6859
  29. 1728
  30. 10648
  31. 571787
  32. 531441
  33. 39304
  34. 2744
  35. 4096
  36. 389017
  37. 753571
  38. 59319
  39. 46656
  40. 238328

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