How to use Roman numerals

by Cameron

To start off you need to know the basic Roman numerals, so here are numerals from one to a thousand.

I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000

When using Roman numerals you can't use more than 3

letters in a number. So for numbers that

are like 4 or 9,you need to do this:

You need to round

the number to the nearest multiple

of 5. Then you write how much of a gap is between the multiple of 5 and the

number you're trying to make. You write that before you write the multiple of 5. For example:

4 = IV 9 = IX 400 =CD

900 = CM

Here's how to do the more complex things.

If you're trying to make a number bigger than 1,000 for example 23, 472 you write the number 23 in Roman numerals then put a line over it that equals 23,000, because if you put a line over a number it times that number by 1000. So XXIII = 23,000 and then you do the rest.

For numbers that are above 1,000,000, here's what you do.

Get M which equals 1,000 and you should know that 1,000 X 1,000 = 1,000,000 so you do M.