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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 846 · 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. 1.61³ =
  2. 2.17³ =
  3. 3.76³ =
  4. 4.34³ =
  5. 5.22³ =
  6. 6.74³ =
  7. 7.85³ =
  8. 8.73³ =
  9. 9.32³ =
  10. 10.45³ =
  11. 11.67³ =
  12. 12.62³ =
  13. 13.44³ =
  14. 14.41³ =
  15. 15.57³ =
  16. 16.71³ =
  17. 17.28³ =
  18. 18.23³ =
  19. 19.59³ =
  20. 20.14³ =
  21. 21.64³ =
  22. 22.95³ =
  23. 23.34³ =
  24. 24.31³ =
  25. 25.21³ =
  26. 26.49³ =
  27. 27.29³ =
  28. 28.46³ =
  29. 29.37³ =
  30. 30.24³ =
  31. 31.21³ =
  32. 32.25³ =
  33. 33.94³ =
  34. 34.29³ =
  35. 35.24³ =
  36. 36.64³ =
  37. 37.83³ =
  38. 38.99³ =
  39. 39.27³ =
  40. 40.21³ =

Answer key

  1. 226981
  2. 4913
  3. 438976
  4. 39304
  5. 10648
  6. 405224
  7. 614125
  8. 389017
  9. 32768
  10. 91125
  11. 300763
  12. 238328
  13. 85184
  14. 68921
  15. 185193
  16. 357911
  17. 21952
  18. 12167
  19. 205379
  20. 2744
  21. 262144
  22. 857375
  23. 39304
  24. 29791
  25. 9261
  26. 117649
  27. 24389
  28. 97336
  29. 50653
  30. 13824
  31. 9261
  32. 15625
  33. 830584
  34. 24389
  35. 13824
  36. 262144
  37. 571787
  38. 970299
  39. 19683
  40. 9261

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