Math.com
Computer Romanus: Roman Numeral Calculator
This site has a calculator that uses only Roman Numerals! There is also an explanation of the number symbols for reference.
E-learning for Kids
E Learning for Kids: Math: Ice Cream Shop: Roman Numerals
On this interactive website students practice various math skills using a real life scenario at an ice cream shop. Those skills include identifying and converting Roman Numerals, identifying place value in a number, and sorting numbers...
Ducksters
Ducksters: Kids Math: Roman Numerals
On this site, investigate math roman numerals find how they work, terms, tricks, and examples.
Purple Math
Purplemath: Roman Numerals
Explains the basic rules for writing numbers in Roman-numeral format.