Hindu Arabic numerals to roman numerals? - Answers

1-I,2-II,3-III,4-IV,5-V,6-VI,7-VII,8-VIII,9-IX,10-X,.........20-XX,......50-L.......90-CX....100-C......500-D.....1000-M.That's all I know.But remember roman numerals like I, X, C and, M can't repeat more than 3 times.Improved Answer:In Roman numerals V, L, and D are used only once in row while I, X and C can be used four times in a row proof of this can be seen in the Roman numerals for 1999 which in its additional format are MDCCCCLXXXXVIIII.Glance at any watch or clock face that have Roman numerals embellished on them and invariably you'll notice that the fourth hour is given as IIII.Furthermore, in the ruins of the Coliseum in Rome, the number 29 is inscribed in stone as XXVIIII.1999 is MIM nowadays, most of the 1900s were MCM....