Does every American people know Roman numbers well?

[wsytzw]

Roman numbers, like "I,II,III,IV,V,VI,VII,VIII,IX,X,XI,XII...", have their own counting rules. "I" is 1, "V" is 5, and "X" is 10...

Although I know the rules of Roman numbers, not every person in my country know them very well. Maybe many people in my country just know Roman numbers from I(1) to VI(6).

So I just wonder, whether or not Roman numers are so widely and well known in other countries like in America and Britain?

[bhaisahab]

Roman numbers, like "I,II,III,IV,V,VI,VII,VIII,IX,X,XI,XII...", have their own counting rules. "I" is 1, "V" is 5, and "X" is 10...

Although I know the rules of Roman numbers, not every person in my country know them very well. Maybe many people in my country just know Roman numbers from I(1) to VI(6).

So I just wonder, whether or not Roman numers are so widely and well known in other countries like in America and Britain?

I would say that most people in Britain would know them from 1 to 10, but I doubt whether many people would know all of the numbers, especially up into the hundreds and thousands.