Roman numerals
Uppercase letters that represented numbers in ancient Rome; they are still seen today in uses such as clock and watch dials and pagination.
fifty 
Letter whose value is 50 units.
one 
Letter whose value is 1 unit.
five 
Letter whose value is 5 units.
one hundred 
Letter whose value is 100 units.
five hundred 
Letter whose value is 500 units.
one thousand 
Letter whose value is 1,000 units.
ten 
Letter whose value is 10 units.