25 in Roman numerals

25 in Roman numerals is XXV.

Pick any whole number from 1 to 3,999.

25 = \text{XXV}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 10 (X) + 10 (X) + 5 (V) = 25.
3
Joined together: XXV. (Four of the same letter in a row is never used: 4 is IV, 9 is IX, 40 is XL, 90 is XC, 400 is CD, 900 is CM.)

What is 25 in Roman numerals?

XXV.

How do you read XXV?

XXV = 10 + 10 + 5 = 25.