- any of the letters representing numbers in the Roman numerical system: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1,000. In this system a letter placed after another of greater value adds (thus XVI or xvi is 16), whereas a letter placed before another of greater value subtracts (thus XC is 90).
noun: Roman numeral, plural noun: Roman numerals
1. Roman numerals are believed to have originated...計數的木條 整句的文法結構可以詳細的說明嗎? Roman numerals are believed to have originated...
1. C-note C-note, from the Roman numeral C for 100, although this usage is far less common today than it was...
Roman numeral 1987:- 1987=MCM, LXXX, VII month7=VII day7=VII