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    • Join Date: Aug 2007
    • Posts: 2

    how can i read a roman number

    this is the number XIV that i cannot read please help ??

    • Join Date: Aug 2006
    • Posts: 3,059

    Re: how can i read a roman number

    Quote Originally Posted by osa_ahlawy View Post
    this is the number XIV that i cannot read please help ??
    X = 10
    XI = 11
    XII = 12
    XIII = 13
    XIV = 14
    XV = 15

    • Join Date: Nov 2007
    • Posts: 5,409

    Re: how can i read a roman number

    1 = I
    2 =II
    3 = III
    4 = IV
    5 = V
    Note that 4 is shown as a Roman numeral by placing a "I" in front of a "V". This is the same as 'one less than' 5.
    6,7,and 8 are formed by placing by placing "I" after a "V" - this is the same as 'one/two/three more than 5. So :
    6 = VI
    7 = VII
    8 = VIII
    10 is X
    so 9 = IX (one less than 10)
    11 = X1 (one more than 10)
    13 = XIII ( 3 more than 10)
    50 = L
    100 = C
    500 = D
    1000 = M

    Here are the basics (I quote)::

    I The easiest way to note down a number is to make that many marks - little I's. Thus I means 1, II means 2, III means 3. However, four strokes seemed like too many....
    V So the Romans moved on to the symbol for 5 - V. Placing I in front of the V or placing any smaller number in front of any larger number indicates subtraction. So IV means 4. After V comes a series of additions - VI means 6, VII means 7, VIII means 8.
    X X means 10. But wait what about 9? Same deal. IX means to subtract I from X, leaving 9. Numbers in the teens, twenties and thirties follow the same form as the first set, only with X's indicating the number of tens. So XXXI is 31, and XXIV is 24.
    L L means 50. Based on what you've learned, I bet you can figure out what 40 is. If you guessed XL, you're right = 10 subtracted from 50. And thus 60, 70, and 80 are LX, LXX and LXXX.
    C C stands for centum, the Latin word for 100. A centurion led 100 men. We still use this in words like "century" and "cent." The subtraction rule means 90 is written as XC. Like the X's and L's, the C's are tacked on to the beginning of numbers to indicate how many hundreds there are: CCCLXIX is 369.
    D D stands for 500. As you can probably guess by this time, CD means 400. So CDXLVIII is 448. (See why we switched systems?)
    M M is 1,000. You see a lot of Ms because Roman numerals are used a lot to indicate dates. For instance, this page was written in the year of Nova Roma's founding, 1998 CE (Common Era; Christians use AD for Anno Domini, "year of our Lord"). That year is written as MCMXCVIII. But wait! Nova Roma counts years from the founding of Rome, ab urbe condita. By that reckoning Nova Roma was founded in 2751 a.u.c. or MMDCCLI.


    Larger numbers were indicated by putting a horizontal line over them, which meant to multiply the number by 1,000. Hence the V at left has a line over the top, which means 5,000. This usage is no longer current, because the largest numbers usually expressed in the Roman system are dates, as discussed above.
    You have a go now - try these:
    Last edited by David L.; 24-Dec-2007 at 01:58.

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