WEBVTT
Kind: captions
Language: en

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Negative numbers are any number less

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than zero. Imagining something less than

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zero can be difficult.

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Suppose you have a bowl of oranges and

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someone takes them away until you have

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zero left. When there's nothing it's hard

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to imagine being able to take away more;

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however, there are instances in real life

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where we use numbers less than zero. For

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example, did you know the average

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temperatures at the top of Mount Everest

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range from negative 19 degrees Celsius

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to negative 36 degrees Celsius?

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Wow, that's cold. Negative numbers also

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appear in finances to show debt.

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Suppose you have $50 in your

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bank account, but then you accidentally

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spend $60. Your account balance is now

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negative $10.

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This means you owe the bank $10. To understand this more,

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let's look at a number line. For every

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positive number, there is a negative

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number. Negative numbers can also be

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thought of as the opposite of a positive

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number, so the opposite of 5 is negative

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5. You might also notice that as we go

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further down the number line the

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negative numbers appear to get larger.

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However, the numbers are really getting

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smaller.

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For example, negative 10 is smaller than

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negative 5.

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This can be confusing, but think about it

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in terms of temperature.

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Suppose on a winter's day it's negative

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25 degrees Celsius in Barrow, Alaska, and

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negative 35 degrees Celsius in Stanley,

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Idaho. Stanley would be colder than Barrow

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because negative 35 is lower than

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negative 25. Now you know the basics of

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negative numbers.