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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 104 · 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. 1.21³ =
  2. 2.87³ =
  3. 3.71³ =
  4. 4.76³ =
  5. 5.23³ =
  6. 6.38³ =
  7. 7.93³ =
  8. 8.81³ =
  9. 9.45³ =
  10. 10.64³ =
  11. 11.14³ =
  12. 12.15³ =
  13. 13.32³ =
  14. 14.39³ =
  15. 15.14³ =
  16. 16.93³ =
  17. 17.31³ =
  18. 18.12³ =
  19. 19.11³ =
  20. 20.18³ =
  21. 21.61³ =
  22. 22.49³ =
  23. 23.93³ =
  24. 24.14³ =
  25. 25.26³ =
  26. 26.76³ =
  27. 27.52³ =
  28. 28.91³ =
  29. 29.81³ =
  30. 30.29³ =
  31. 31.74³ =
  32. 32.29³ =
  33. 33.45³ =
  34. 34.34³ =
  35. 35.19³ =
  36. 36.41³ =
  37. 37.54³ =
  38. 38.32³ =
  39. 39.75³ =
  40. 40.56³ =

Answer key

  1. 9261
  2. 658503
  3. 357911
  4. 438976
  5. 12167
  6. 54872
  7. 804357
  8. 531441
  9. 91125
  10. 262144
  11. 2744
  12. 3375
  13. 32768
  14. 59319
  15. 2744
  16. 804357
  17. 29791
  18. 1728
  19. 1331
  20. 5832
  21. 226981
  22. 117649
  23. 804357
  24. 2744
  25. 17576
  26. 438976
  27. 140608
  28. 753571
  29. 531441
  30. 24389
  31. 405224
  32. 24389
  33. 91125
  34. 39304
  35. 6859
  36. 68921
  37. 157464
  38. 32768
  39. 421875
  40. 175616

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