25 in Roman numerals
25 is written XXV. In chunks: X (10) + X (10) + V (5) = 25.
The answer
XXV
25 in Roman numerals is XXV.
How XXV is built
To write it, split 25 into 20 + 5. 20 is XX, 5 is V, so 25 is XX then V: XXV.
To read it, XXV has 3 chunks, and none of them is a take-away pair, so every chunk is added.
| Chunk | Worth | Why |
|---|---|---|
| X | 10 | Add |
| X | 10 | Add |
| V | 5 | Add |
The mistake to watch for
Writing 25 as XXIIIII
Wrong: XXIIIII
XXIIIII counts in ones, like a tally, and writes I more than three times in a row. Use V for five: 5 is V, which makes 25 XXV.
Check it with the converter
Type XXIIIII to see why XXIIIII is not 25. The rule numbers it gives are the three rules on the Roman numerals page.
Converter set to XXV (25).
Keep going
Questions parents ask
What is 25 in Roman numerals?
25 is XXV.
What comes before and after XXV?
24 is XXIV and 26 is XXVI.
Does XXV use subtraction?
No. Every letter in XXV is the same size as, or smaller than, the letter before it, so you just add them all.
What is the biggest letter in XXV?
X, which is 10. XXV has 3 letters.
Careful reading is an 11+ skill
Reading all 3 letters of XXV in order is the careful checking 11+ papers reward. The free diagnostic covers all four subjects, with no card needed.