The letters are usually shown as capitals.
MDXI=1541
M=1000
D=500
X=10
I=1
it is 1540
MDXL is the Roman numeral representation for the number 1540.
1540
Hurray for Roman numerals! MDXL = 1,000 + 500 + (50 - 10) = 1,540 this makes the problem much easier. From here you can use our base-ten system to your advantage and find 10% (1/10) by moving the decimal once to the left. 1,540 * .1 = 154 If you wanted to write this in Roman numerals: 100 + 50 + (5 - 1) = CLIV
1540
it means 1,150 in roman numerals
988 = CMLXXXVIII in Roman numerals
Not a valid sequence for Roman numerals
Those Roman Numerals mean 1991.
It does not mean anything because it is an invalid arrangement of Roman numerals
"D" in Roman Numerals equals 500.
In Roman numerals, it means N M C.