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Roman Numeral
 

[image-12]

      a letter used as a number in the very old Roman number system

  • I equals 1
  • V equals 5
  • X equals 10
  • L equals 50
  • C equals 100
  • D equals 500
  • M equals 1,000

 


Sentences:

Some NASA patches have Roman numerals on them.

Until 1969, NASA only used Roman numerals for missions that were a success.

 


 

Image Token: 
[image-47]
A round blue patch showing the space station, names of astronauts, six stars and the numerals XX
This space station patch has two Xs. They are Roman numerals that stand for the number 20.
Image Credit: 
NASA
Image Token: 
[image-12]
Image Token: 
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Page Last Updated: October 9th, 2014
Page Editor: Sandra May