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Integers, Integer Properties and the Role of Zero

science.howstuffworks.com/math-concepts/integers.htm

Integers are natural numbers (or whole numbers) that stem from the Latin word meaning "intact." In other words, any two integers will be rational numbers. A rational number is a value without fractional part or decimal remainders.

If a giraffe's neck only has seven vertebrae, how is it so flexible?

animals.howstuffworks.com/mammals/giraffe-neck.htm

A good portion of a giraffe's height comes from its statuesque neck. But how do these lanky creatures get their necks in such pretzel-like positions?

The Coordinate Plane Comprises 2 Axes and 4 Quadrants

science.howstuffworks.com/math-concepts/coordinate-plane.htm

A coordinate plane is a mathematical, two-dimensional plane formed by two number lines. A horizontal number line and a vertical number line intersect to form two axes (plural for axis), and a grid system comprised of four quadrants.

Does More Blades Mean a Better Razor?

health.howstuffworks.com/skin-care/beauty/hair-removal/how-many-blades.htm

How many blades are on your razor? Does it matter? Learn whether how many blades your razor features is important or not.

How to Find Range

science.howstuffworks.com/math-concepts/how-to-find-range.htm

Finding the range of a set of numbers is an easy subtraction problem!

When Presidential Approval Ratings Really Matter

people.howstuffworks.com/when-presidential-approval-ratings-really-matter.htm

Every week there's a poll with new numbers on how many Americans approve of the president's job performance. But what do these numbers really tell us and when should we take them seriously?

Why Is Super Tuesday So Super?

people.howstuffworks.com/super-tuesday.htm

Super Tuesday is the day early in a U.S. presidential primary season when a large number of states hold primaries. It's also the first day when a huge number of delegates are up for grabs.

The Classic Porsche Quiz: Can You Name Them All?

play.howstuffworks.com/quiz/the-classic-porsche-quiz-can-you-name-them-all

Porsche sure loves numbers! Most of their models only have a number as an identifier: 911 (no, it's not an emergency), 901, 550 and many more. Can you identify them from a single image?

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