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mathematics FROM 1

Chapter 1: Number and numerals

Numerals

Numerals are symbols which represent number e.g. I, V, X etc.

There are different types of numerals; roman numerals, hidu-arabic numerals and Egyptian numerals.

Roman numerals

The following are the basic roman numerals and the numbers they represent;

I= 1                    C= 100

V= 5                  D= 500

X= 10                 M= 1000

L= 50

The other numbers are obtained by placing any of the above at the right or left that is:

II= 2               LX= 60

IV= 4              MM= 200

XL= 40

N.B. when a smaller numeral is placed at the right hand side of a larger numeral it is subtracted from the larger one e.g. IV= 5-1= 4

        When a larger numeral is placed before or at the right hand side of a smaller numeral it is added to the smaller numeral e.g. VI= 5+1= 6.

par Claude Foumtum