Learn how to prove that the angles of a triangle add to 180 degrees.

216 TMD Why Does a Triangle Have 180 Degrees?

The Math Dude makes understanding math easier and more fun than you ever thought possible. Host Dr. Jason Marshall provides clear explanations of math terms and principles, and his simple tricks for solving basic algebra problems will have even the most mathphobic looking forward to working out whatever math problem comes their way. If you're getting ready to take the SAT, GRE, or any of the other standardized tests; or if you're going back to school and need to brush up on the basics, Math Dude's Quick and Dirty Tips to Make Math Easier will strengthen your fundamental skills and help you understand the language of math. And if you just want to calculate the tip without using your iPhone and impress all your friends, his tips and tricks are for you too.

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300 TMD Math Is a Playground…So Play!

Learn how to use absolute values to find distances between numbers and places.

077 TMD How Are Distances and Absolute Values Related?

Learn all about the math behind flying rockets to space.

299 TMD How to Use Math to Fly Rockets to Space

Learn how to puzzle out the size of the interior angles of polygons.

227 TMD Polygon Puzzle: How Many Degrees Are In a Polygon?

Learn the ins-and-outs of estimating crowd sizes.

216 TMD Why Does a Triangle Have 180 Degrees?

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