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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 452 · 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. 1.79³ =
  2. 2.26³ =
  3. 3.45³ =
  4. 4.36³ =
  5. 5.19³ =
  6. 6.38³ =
  7. 7.46³ =
  8. 8.79³ =
  9. 9.61³ =
  10. 10.25³ =
  11. 11.76³ =
  12. 12.11³ =
  13. 13.17³ =
  14. 14.69³ =
  15. 15.22³ =
  16. 16.24³ =
  17. 17.42³ =
  18. 18.62³ =
  19. 19.53³ =
  20. 20.52³ =
  21. 21.96³ =
  22. 22.39³ =
  23. 23.21³ =
  24. 24.94³ =
  25. 25.77³ =
  26. 26.14³ =
  27. 27.84³ =
  28. 28.22³ =
  29. 29.34³ =
  30. 30.79³ =
  31. 31.93³ =
  32. 32.31³ =
  33. 33.49³ =
  34. 34.85³ =
  35. 35.78³ =
  36. 36.27³ =
  37. 37.61³ =
  38. 38.26³ =
  39. 39.31³ =
  40. 40.11³ =

Answer key

  1. 493039
  2. 17576
  3. 91125
  4. 46656
  5. 6859
  6. 54872
  7. 97336
  8. 493039
  9. 226981
  10. 15625
  11. 438976
  12. 1331
  13. 4913
  14. 328509
  15. 10648
  16. 13824
  17. 74088
  18. 238328
  19. 148877
  20. 140608
  21. 884736
  22. 59319
  23. 9261
  24. 830584
  25. 456533
  26. 2744
  27. 592704
  28. 10648
  29. 39304
  30. 493039
  31. 804357
  32. 29791
  33. 117649
  34. 614125
  35. 474552
  36. 19683
  37. 226981
  38. 17576
  39. 29791
  40. 1331

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