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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 8 · 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. 1.76³ =
  2. 2.38³ =
  3. 3.43³ =
  4. 4.91³ =
  5. 5.69³ =
  6. 6.61³ =
  7. 7.27³ =
  8. 8.53³ =
  9. 9.82³ =
  10. 10.76³ =
  11. 11.75³ =
  12. 12.15³ =
  13. 13.47³ =
  14. 14.14³ =
  15. 15.72³ =
  16. 16.62³ =
  17. 17.81³ =
  18. 18.77³ =
  19. 19.52³ =
  20. 20.98³ =
  21. 21.46³ =
  22. 22.57³ =
  23. 23.11³ =
  24. 24.84³ =
  25. 25.51³ =
  26. 26.83³ =
  27. 27.73³ =
  28. 28.95³ =
  29. 29.29³ =
  30. 30.21³ =
  31. 31.15³ =
  32. 32.71³ =
  33. 33.36³ =
  34. 34.17³ =
  35. 35.23³ =
  36. 36.61³ =
  37. 37.71³ =
  38. 38.39³ =
  39. 39.33³ =
  40. 40.79³ =

Answer key

  1. 438976
  2. 54872
  3. 79507
  4. 753571
  5. 328509
  6. 226981
  7. 19683
  8. 148877
  9. 551368
  10. 438976
  11. 421875
  12. 3375
  13. 103823
  14. 2744
  15. 373248
  16. 238328
  17. 531441
  18. 456533
  19. 140608
  20. 941192
  21. 97336
  22. 185193
  23. 1331
  24. 592704
  25. 132651
  26. 571787
  27. 389017
  28. 857375
  29. 24389
  30. 9261
  31. 3375
  32. 357911
  33. 46656
  34. 4913
  35. 12167
  36. 226981
  37. 357911
  38. 59319
  39. 35937
  40. 493039

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