It is: XXXX or XL which means 40 or (50-10)
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
C is equal to 100
II
DCCCXXXII
DLXXIV
MMXIII