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

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# Understanding Roman Numerals

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

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