84 in Roman numerals
84 is written LXXXIV. In chunks: L (50) + X (10) + X (10) + X (10) + IV (4) = 84.
The answer
LXXXIV
84 in Roman numerals is LXXXIV.
How LXXXIV is built
To write it, split 84 into 80 + 4. 80 is LXXX, 4 is IV, so 84 is LXXX then IV: LXXXIV.
To read it, LXXXIV has 5 chunks, and IV is a take-away pair, worked out first and then added.
| Chunk | Worth | Why |
|---|---|---|
| L | 50 | Add |
| X | 10 | Add |
| X | 10 | Add |
| X | 10 | Add |
| IV | 4 | I before V: take away |
The mistake to watch for
Writing 84 as LXXXIIII
Wrong: LXXXIIII
LXXXIIII writes I four times in a row. Never more than three: 4 is IV, one before five, which makes 84 LXXXIV.
Check it with the converter
Type LXXXIIII to see why LXXXIIII is not 84. The rule numbers it gives are the three rules on the Roman numerals page.
Converter set to LXXXIV (84).
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Questions parents ask
What is 84 in Roman numerals?
84 is LXXXIV.
What comes before and after LXXXIV?
83 is LXXXIII and 85 is LXXXV.
Does LXXXIV use subtraction?
Yes, once: I comes before the bigger V, so IV is 4. The other letters are added.
What is the biggest letter in LXXXIV?
L, which is 50. LXXXIV has 6 letters.
Careful reading is an 11+ skill
Reading all 6 letters of LXXXIV in order is the careful checking 11+ papers reward. The free diagnostic covers all four subjects, with no card needed.