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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 324 · 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. 2.18³ =
  3. 3.71³ =
  4. 4.44³ =
  5. 5.16³ =
  6. 6.44³ =
  7. 7.36³ =
  8. 8.74³ =
  9. 9.14³ =
  10. 10.25³ =
  11. 11.28³ =
  12. 12.22³ =
  13. 13.19³ =
  14. 14.39³ =
  15. 15.49³ =
  16. 16.82³ =
  17. 17.53³ =
  18. 18.84³ =
  19. 19.61³ =
  20. 20.72³ =
  21. 21.21³ =
  22. 22.36³ =
  23. 23.84³ =
  24. 24.12³ =
  25. 25.47³ =
  26. 26.33³ =
  27. 27.85³ =
  28. 28.33³ =
  29. 29.13³ =
  30. 30.31³ =
  31. 31.53³ =
  32. 32.81³ =
  33. 33.89³ =
  34. 34.28³ =
  35. 35.64³ =
  36. 36.53³ =
  37. 37.52³ =
  38. 38.42³ =
  39. 39.21³ =
  40. 40.84³ =

Answer key

  1. 226981
  2. 5832
  3. 357911
  4. 85184
  5. 4096
  6. 85184
  7. 46656
  8. 405224
  9. 2744
  10. 15625
  11. 21952
  12. 10648
  13. 6859
  14. 59319
  15. 117649
  16. 551368
  17. 148877
  18. 592704
  19. 226981
  20. 373248
  21. 9261
  22. 46656
  23. 592704
  24. 1728
  25. 103823
  26. 35937
  27. 614125
  28. 35937
  29. 2197
  30. 29791
  31. 148877
  32. 531441
  33. 704969
  34. 21952
  35. 262144
  36. 148877
  37. 140608
  38. 74088
  39. 9261
  40. 592704

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