Roman numerals to numbers conversion calculator and how to convert. What is the value of 200 + 20 in Roman Numerals? 200 + 20 = 220. The number 220 in Roman Numerals is CCXX . Therefore the value of 200 + 20 in Roman Numerals is CCXX . We would like to show you a description here but the site won’t allow us. CCXX is the Roman numeral representation of 220 . Here, C represents 100 and X represents 10. Thus, CCXX = 100 + 100 + 10 + 10 = 220. Therefore, CCXX represents the value 220 in Roman numerals. The above value is derived by combining the values of specific Roman numeral symbols used in the system.
