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A Big Calculator

Other Operations

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Checkpoint #1

Variables

Checkpoint #2

Summary

Lesson 1 Summary

In this lesson, we've discussed how a computer really is just a big, complicated calculator. And we've learned how to perform some basic operations with this calculator: we can perform all of the normal algebraic operations. And we also learned how to store important numbers as variables, using those variables in operations. 

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Let's put everything we've learned together in one final exercise:

1. Look at the following image, illustrating the timeline of the planet Earth's existence.

Early Timeline.png

Calculate the following:

     a. How old is the planet in days? 

     b. For percent of the Earth's existence did dinosaurs roam the planet?

     c. For what percent of the Earth's existence have you been alive?

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