Does IX mean 11 in Roman numerals?

Answer 1

No, IX - 9

Answer 2

NO!!!!

'IX = 9

However 'XI = 11

In Roman numerals

The letters corresponding to their values are

M = 1000

D = 500

C = 100

L = 50

X = 10

V = 5

I = 1

The highest value letter ALWAYS goes to the left , except for subtraction.

So in you example IX , the I =1 is of lesser value than X = 10 . Hence when this lesset value letter is placed to the left of a higher value letter it means 'subtract'. So ;IX' means 10 - 1 = 9 However, 'XI = 10 + 1 = 11

Similarly

MM = 1000 + 1000 = 2000

But

MCM = 1000 + ( 1000 - 100) = 1000 + 900 = 1900.

So the years 2025 is = MMXXV

However the year 1925 = MCMXXV