It's, I.
It is: 11 = XI as a Roman numeral
To write the number 9 in Roman numerals, you would use the symbol 'IX'. This is made by combining the Roman numeral for 1, 'I', and the Roman numeral for 10, 'X', subtracting 1 from 10.
There is no specific symbol for Roman numeral fractions. The Romans did use fractions but they expressed them as a whole number followed by a fraction sign (usually "1/2", "1/4", or "1/8") placed after the whole number. For example, "II 1/2" would represent the number 2 and a half.
E is not used as a symbol in the roman numeral system.
There is no Roman numeral represented by the symbol Y.
The Roman numeral V represents the number 5.
The symbol for 6 in Roman numeral is "VI".
The Roman Numeral symbol for 500 is the letter D. You would represent the number 510 as DX.
A zero symbol
It is: (M) which means 1000*1000 = 1,000,000
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