Zero, because the Romans had no numeral for it. However medieval monks, who wrote in Latin and used Roman numerals, introduced the symbol N (taken from the Latin Nullae meaning nothing) to represent zero.
The roman numeral V represents the number 5.
MCMLXXX is the number 1980 in roman numerals. The XXX in last is to add 30 to make the last numbers 80.
I (iv =4)
Roman numerals do not make provision for decimals. 22 is XXII
4x9=36 OR XXXVI Roman Numerals
It was the only number system when it was invented
The roman numeral V represents the number 5.
MCMLXXX is the number 1980 in roman numerals. The XXX in last is to add 30 to make the last numbers 80.
I (iv =4)
Roman numerals do not make provision for decimals. 22 is XXII
8D Nonono, Roman Numerals were a counting system. Just like you can't make letters with 123..., you can't make letters for numerals.
4x9=36 OR XXXVI Roman Numerals
DLXXIV
1109
DCCCXXXII
MMXIII
VI