IX Roman Numerals

IX

9

nine

How to read IX

SymbolsValueRunning total
I (subtracted)X10 − 1 = 99
IX9

IX is a subtractive pair: the I before the X takes 1 away, so IX is 9, not 11.

Easy to confuse with IX

Where you'll see IX

  • Super Bowl IX was played on January 12, 1975 at Tulane Stadium in New Orleans: the Pittsburgh Steelers beat the Minnesota Vikings 16–6.

    Source: foxsports.com

  • Some documents write the month in Roman numerals so it isn't confused with the day: IX is September.

    Source: en.wikipedia.org

  • The Games of the IX Olympiad were held in Amsterdam in 1928.

    Source: wiki.krisyotam.com

Century IX

Century IX is the 9th century: it runs from 801 to 900.

More about the 9th century

Numerals near IX

Is IX written correctly?

Standard form
Yes
Letters
2
Subtractive pairs
IX
Symbols used
X, I

Keep going