number systems

number systems

by Khiara Ricketts

​Number systems

​In pre-historic times developed number systems mainly for the purpose of trading and agriculture.

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*A number system is a writing symbol for expressing numbers using symbols in a consistent manner.

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*Ancient civilizations used sticks, clay, stones, and even animal bones to record numbers.

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​*Numbers form the basis of mathematics and are used in our day to day life to count , order , measure , and label.

A video will be presented before we go on

​* We use numbers for a lot of things

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name some ways we use numbers in our day to day life:

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​1:

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​2:

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​3:

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​4:

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​5:

​We use numbers to tell date and time, measure our weight and height, tell our age, birthday, keep scores in a match and assign unique bank account

password, telephone and license plate numbers etc.

​A positional or place value number system is one in which the position of a symbol in a number determines its value.

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​In most ancient number systems, position didn't matter. In fact, a symbol would be repeatedly drawn to represent larger numbers. For example in roman numeration the number 35 with X represented ten and V represented 5 so 35 would be XXXV

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​In ancient time larger numbers were too cumbersome to write

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​basic operations such as mathematics were too difficult to model

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​This concludes our lesson, in the next math study session we'll look at the modern number system and study how various numbers are classified