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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 685 · 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. 1.32³ =
  2. 2.19³ =
  3. 3.31³ =
  4. 4.28³ =
  5. 5.77³ =
  6. 6.54³ =
  7. 7.74³ =
  8. 8.68³ =
  9. 9.17³ =
  10. 10.79³ =
  11. 11.22³ =
  12. 12.91³ =
  13. 13.32³ =
  14. 14.98³ =
  15. 15.68³ =
  16. 16.18³ =
  17. 17.71³ =
  18. 18.55³ =
  19. 19.93³ =
  20. 20.96³ =
  21. 21.45³ =
  22. 22.36³ =
  23. 23.39³ =
  24. 24.42³ =
  25. 25.22³ =
  26. 26.96³ =
  27. 27.28³ =
  28. 28.54³ =
  29. 29.51³ =
  30. 30.36³ =
  31. 31.93³ =
  32. 32.75³ =
  33. 33.93³ =
  34. 34.65³ =
  35. 35.33³ =
  36. 36.23³ =
  37. 37.19³ =
  38. 38.52³ =
  39. 39.21³ =
  40. 40.71³ =

Answer key

  1. 32768
  2. 6859
  3. 29791
  4. 21952
  5. 456533
  6. 157464
  7. 405224
  8. 314432
  9. 4913
  10. 493039
  11. 10648
  12. 753571
  13. 32768
  14. 941192
  15. 314432
  16. 5832
  17. 357911
  18. 166375
  19. 804357
  20. 884736
  21. 91125
  22. 46656
  23. 59319
  24. 74088
  25. 10648
  26. 884736
  27. 21952
  28. 157464
  29. 132651
  30. 46656
  31. 804357
  32. 421875
  33. 804357
  34. 274625
  35. 35937
  36. 12167
  37. 6859
  38. 140608
  39. 9261
  40. 357911

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