Roman Ten Math
A letter can be repeated only for three times for example xxx 30 cc 200 etc.
Roman ten math. Rules for converting numbers to roman numerals. If one or more letters are placed after another letter of greater value add that amount. Roman numerals converter. Moreover this ties in with why iv represents four vi six ix nine and so on.
In time the came to represent five with a later shortening to and the came to represent ten. Vii 7 5 2 7 lxxx 80 50 10 10 10 80. Vii v i i 7. The three primary rules for writing and reading roman numerals.