Solution - Roman numeral to integer

485

485

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Step-by-step explanation

1. Clean up the input

Your input was cleaned into standard Roman numeral form: $r o m a n (C D L X X X V)$ → $C D L X X X V$ .

2. Expand symbols

Read left to right.
If a smaller symbol comes before a larger one, treat them as one subtractive pair (for example, IX = 9).
Otherwise, each symbol stands alone.

For this input we get:

$C D (400) + L (50) + X (10) + X (10) + X (10) + V (5)$

3. Sum values

Now add the values:
$400 + 50 + 10 + 10 + 10 + 5$ = $485$ .

So $C D L X X X V$ equals $485$ .

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Why learn this

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Roman numerals still appear in clocks, chapter headings, outlines, and events. Converting them quickly helps in everyday reading and interpretation.

Terms and topics

Roman numeral to integer