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What Computers Think About Numbers
To do math, a computer needs a way of representing numbers. As it turns out, computers think about numbers pretty differently than humans do.
For example, we like to think we can keep counting to higher and higher numbers forever, but computers have a limited amount of storage space. If they start counting, they eventually run out of room. There is no biggest number, but there is a biggest number your computer can represent in Scratch.
Similarly, we think about fractions and decimal numbers as matching up with points on a number line, with an infinite number of points fitting between any two whole numbers. ...
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