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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 295 · 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. 1.72³ =
  2. 2.66³ =
  3. 3.83³ =
  4. 4.64³ =
  5. 5.43³ =
  6. 6.21³ =
  7. 7.81³ =
  8. 8.92³ =
  9. 9.73³ =
  10. 10.59³ =
  11. 11.14³ =
  12. 12.27³ =
  13. 13.58³ =
  14. 14.47³ =
  15. 15.76³ =
  16. 16.25³ =
  17. 17.52³ =
  18. 18.93³ =
  19. 19.65³ =
  20. 20.58³ =
  21. 21.49³ =
  22. 22.38³ =
  23. 23.96³ =
  24. 24.63³ =
  25. 25.43³ =
  26. 26.29³ =
  27. 27.81³ =
  28. 28.22³ =
  29. 29.52³ =
  30. 30.93³ =
  31. 31.25³ =
  32. 32.65³ =
  33. 33.14³ =
  34. 34.17³ =
  35. 35.41³ =
  36. 36.12³ =
  37. 37.71³ =
  38. 38.31³ =
  39. 39.43³ =
  40. 40.36³ =

Answer key

  1. 373248
  2. 287496
  3. 571787
  4. 262144
  5. 79507
  6. 9261
  7. 531441
  8. 778688
  9. 389017
  10. 205379
  11. 2744
  12. 19683
  13. 195112
  14. 103823
  15. 438976
  16. 15625
  17. 140608
  18. 804357
  19. 274625
  20. 195112
  21. 117649
  22. 54872
  23. 884736
  24. 250047
  25. 79507
  26. 24389
  27. 531441
  28. 10648
  29. 140608
  30. 804357
  31. 15625
  32. 274625
  33. 2744
  34. 4913
  35. 68921
  36. 1728
  37. 357911
  38. 29791
  39. 79507
  40. 46656

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