Simply because there are rules defining how you interpret the way the numbers are written. For example the number 6 in Roman numerals is VI - meaning you add 1 to 5. The number 4 is IV - since the 1 is less than 5 you subtract it.
In a larger number there can be different ways to write it - for example 1999 can be written as MIM which is 1000 + (1000-1) OR MCMXCIX which is 1000+(1000-100)+(100-10)+(10-1)
You write 1533 in roman numerals like this: MDXXXIII
To write 19000 in Roman numerals, combine the Roman numerals for 1000 (M) and 9000 (IX). Therefore, 19000 in Roman numerals is written as MXCM.
To write twenty in Roman numerals, you simply write the letter X.
CCCLX is the number 280 in roman numerals. This number is used to represent what roman used to write.
MM is 2000 in Roman numerals.
You write 1533 in roman numerals like this: MDXXXIII
Roman numerals don't have decimals but to a certain extent they do include fractions if needed
To write 19000 in Roman numerals, combine the Roman numerals for 1000 (M) and 9000 (IX). Therefore, 19000 in Roman numerals is written as MXCM.
To write twenty in Roman numerals, you simply write the letter X.
CCCLX is the number 280 in roman numerals. This number is used to represent what roman used to write.
MM is 2000 in Roman numerals.
403 is CDIII in Roman Numerals
507 in roman numerals is DVII
3456 in Roman numerals is MMMCDLVI
Zero does not exist in roman numerals
94 in Roman Numerals is XCIV.
367 in Roman Numerals is CCCLXVII