What is the Arabic numeral for CMXLIV?

Answer 1

CMXLIV

CM= 1000 - 100 = 900

XL = 50 - 10 = 40

IV = 5 - 1 = 4

Hence

CMXLIV = 900 + 40 + 4 = 944

In Roman numerals the letter with the highest value is to the left.

If there is a letter with a lower value to the left of a higher value, then you subtract the lower value from the higher value.

Letter values

M = 1000

D = 500

C = 100

L = 50

X = 10-

V = 5

I = 1

For all Roman numerals, then letter of greatest value goes to the left, followed by lesser values to the right. Then the terms are added. As you can see from the table 'C' = 100 , is of lesser value than 'M' = 1000. Since 'C' is to the left of 'M' then 'C' is subtracted from 'M'. Similarly 'XL' & 'IV'.

Overall 'CM' is of greater value than the 'XL' , so 'CM' goes to the left as it is of greater value. Similarly 'IV'.