It's helpful to think of Roman numerals as a math equation. When you use numerals to write out a number, you're basically using the symbols at your disposal to add up to the desired number.

But you can also subtract numbers from each other by placing a symbol with a smaller value to the left of one with a larger value. The value of the smaller symbol is subtracted from that of the larger ...

Another year adds another Roman numeral to the NFL's biggest game: the Super Bowl. This year, that number stands as LVI: three numerals that, added together, result in the latest Super Bowl edition.