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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 36 · 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. 2.56³ =
  3. 3.42³ =
  4. 4.28³ =
  5. 5.82³ =
  6. 6.32³ =
  7. 7.25³ =
  8. 8.56³ =
  9. 9.23³ =
  10. 10.28³ =
  11. 11.76³ =
  12. 12.65³ =
  13. 13.98³ =
  14. 14.71³ =
  15. 15.88³ =
  16. 16.26³ =
  17. 17.45³ =
  18. 18.19³ =
  19. 19.91³ =
  20. 20.97³ =
  21. 21.91³ =
  22. 22.98³ =
  23. 23.39³ =
  24. 24.89³ =
  25. 25.11³ =
  26. 26.68³ =
  27. 27.51³ =
  28. 28.21³ =
  29. 29.97³ =
  30. 30.29³ =
  31. 31.45³ =
  32. 32.27³ =
  33. 33.83³ =
  34. 34.43³ =
  35. 35.81³ =
  36. 36.34³ =
  37. 37.54³ =
  38. 38.18³ =
  39. 39.71³ =
  40. 40.53³ =

Answer key

  1. 551368
  2. 175616
  3. 74088
  4. 21952
  5. 551368
  6. 32768
  7. 15625
  8. 175616
  9. 12167
  10. 21952
  11. 438976
  12. 274625
  13. 941192
  14. 357911
  15. 681472
  16. 17576
  17. 91125
  18. 6859
  19. 753571
  20. 912673
  21. 753571
  22. 941192
  23. 59319
  24. 704969
  25. 1331
  26. 314432
  27. 132651
  28. 9261
  29. 912673
  30. 24389
  31. 91125
  32. 19683
  33. 571787
  34. 79507
  35. 531441
  36. 39304
  37. 157464
  38. 5832
  39. 357911
  40. 148877

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