ASTRO UTAH's Big Numbers
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These web pages will walk you through some easy arithmetic. It will be mostly multiplication and division. The arithmetic will help you figure out how to build your models. A simple pocket calculator will come in handy. If you like to play with numbers, using a calculator as you view these pages will teach you a lot. You'll see some very big numbers as you make your Earth-Moon model.

Here are some things you should remember:

1,000 times 1,000 = 1,000,000 (a million)

1,000 times a million = 1,000,000,000 (a billion)

1,000 times a billion = 1,000,000,000,000 (a trillion)

Millions, billions, and trillions. All are used in making models of the universe.

Go to the next page.

Go to the previous page.

Return to the first page of this exercise.

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