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# Understanding Roman Numerals

A basic introduction to the history and use of Roman Numerals in today's society
by

## peter barlow

on 9 March 2013

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#### Transcript of Understanding Roman Numerals

Understanding Roman Numerals OR Now to put them together: e.g.
9 is IX
18 is IIXX A small number in front of a larger one means SUBTRACT the smaller from the larger 21 - XXI The Romans used these symbols to create their numbers No more than 3 of the same
numerals in a row e.g.
31 = XXXI
305 = CCCV A small number after a larger one means ADD the smaller to the larger e.g.
11 is XI
22 is XXII Here's
some examples: 334 - CCCXXXIV 1008 - MVIII 1981 - MCMLXXXI I
Value
Xylophones
Like
Cows
Do
Milk Here's a way to remember them: 1 = I
5 = V
10 = X
50 = L
100 = C
500 = D
1000 = M http://www.greatmathsgames.com/roman_numerals/roman_numerals_i.htm 1 = I
5 = V
10 = X
50 = L
100 = C
500 = D
1000 = M I
View
X-rays
Lucky
Cows
Drink
Milk Now go and discover
the history of Roman Numerals
for yourself at the link below remember
X is 10 Remember
X is 10 ... and
C is 100. Now you have mins. to work these out XIX = ?
MMXIII = ?
CML = ?
CDL = ? 19 = ?
3016 = ?
998 = ?
49 = ? Image Credits:
all images were taken from http://www.dreamstime.com
cartoon taken from
http://www.greatmathsgames.com/roman_numerals/roman_numerals.htm
Full transcript