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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 733 · 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. 1.96³ =
  2. 2.25³ =
  3. 3.32³ =
  4. 4.34³ =
  5. 5.19³ =
  6. 6.71³ =
  7. 7.21³ =
  8. 8.62³ =
  9. 9.34³ =
  10. 10.97³ =
  11. 11.95³ =
  12. 12.35³ =
  13. 13.15³ =
  14. 14.72³ =
  15. 15.71³ =
  16. 16.62³ =
  17. 17.68³ =
  18. 18.94³ =
  19. 19.21³ =
  20. 20.18³ =
  21. 21.28³ =
  22. 22.83³ =
  23. 23.42³ =
  24. 24.73³ =
  25. 25.33³ =
  26. 26.77³ =
  27. 27.49³ =
  28. 28.24³ =
  29. 29.51³ =
  30. 30.31³ =
  31. 31.95³ =
  32. 32.32³ =
  33. 33.46³ =
  34. 34.16³ =
  35. 35.42³ =
  36. 36.45³ =
  37. 37.19³ =
  38. 38.51³ =
  39. 39.61³ =
  40. 40.25³ =

Answer key

  1. 884736
  2. 15625
  3. 32768
  4. 39304
  5. 6859
  6. 357911
  7. 9261
  8. 238328
  9. 39304
  10. 912673
  11. 857375
  12. 42875
  13. 3375
  14. 373248
  15. 357911
  16. 238328
  17. 314432
  18. 830584
  19. 9261
  20. 5832
  21. 21952
  22. 571787
  23. 74088
  24. 389017
  25. 35937
  26. 456533
  27. 117649
  28. 13824
  29. 132651
  30. 29791
  31. 857375
  32. 32768
  33. 97336
  34. 4096
  35. 74088
  36. 91125
  37. 6859
  38. 132651
  39. 226981
  40. 15625

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