How do you write 29 in Roman numerals?

29 is written as XXIX in Roman numerals: 29 = 20 (XX) + 9 (IX). The symbols are then written from largest to smallest value.

What does XXIX stand for?

XXIX stands for the number 29. Reading left to right: XX = 20, IX = 9.

How do you write "29th" in Roman numerals?

Ordinal numbers use the same numerals as cardinal numbers, so "29th" is written XXIX — Roman notation has no separate ordinal form.

29 in Roman Numerals

How to write the number 29 in Roman numerals, with the full place-value breakdown.

The number 29 in Roman numerals

XXIX

Place-value breakdown

29 = 20 + 9, so XXIX = XX + IX. Roman numerals are written from largest to smallest value, left to right:

Place	Value	Roman	Rule
Tens	20	XX	Additive rule: XX = 20 (symbols are simply added)
Ones	9	IX	Subtractive rule: IX = 10 − 1 (a smaller symbol before a larger one is subtracted)

About the number 29

The number 29 is written XXIX in Roman numerals.

Looking for the ordinal form — "29th in Roman numerals"? Roman notation makes no distinction between cardinal and ordinal numbers, so "29th" is also written XXIX.

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