John315

__Roman Numerals __ The roman numerals are I=1, V=5, X=10, L=50, C=100, D=500 and M=1,000. Adding a bar on top of a numeral multiplies it by 1,000. This is used for making numbers bigger than 4,000. Roman numerals can be written in CAPITAL or lowercase. If a smaller number is after a larger number, the smaller number is added to the larger number.  If smaller numbers follow larger numbers, the smaller number is subtracted from the larger. You can keep the values in your mind as follows. >V is the upper half of X >C stands for centum=100, known from centimeter=cm >L is the lower half of C, if you have some imagination >M stands for mile=1000, known from millimeter=mm >D the right half of (I), an old writing of 1000. You must not think that the numerals developed this way in former times. Here is a game online to test what you have learned.

http://www.fi.edu/time/keepers/Silverman/html/RomanMatch.html