Converting numbers in Roman numerals: step-by-step example
22 October 2026
Worked example
Convert the number 24 into Roman numerals, and then change XXIV back into a number.
Step 1: Break 24 into 20 + 4.
Step 2: 20 is XX in Roman numerals (X = 10, so XX = 10 + 10).
Step 3: 4 is IV in Roman numerals (I before V means 1 less than 5).
Step 4: Write 24 as XXIV.
Step 5: To convert XXIV back, split it into XX and IV.
Step 6: XX is 10 + 10 = 20. IV is 5 - 1 = 4.
Step 7: Add 20 + 4 to get 24.
The correct answer is 24.
