Solution - Roman numeral to integer

228

228

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Step-by-step explanation

1. Clean up the input

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

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:

$C (100) + C (100) + X (10) + X (10) + V (5) + I (1) + I (1) + I (1)$

3. Sum values

Now add the values:
$100 + 100 + 10 + 10 + 5 + 1 + 1 + 1$ = $228$ .

So $ℂ X X V I I I$ equals $228$ .

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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