From the course: Learning Algebra: Pre-Algebra

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Introduction to integers

Introduction to integers

From the course: Learning Algebra: Pre-Algebra

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Introduction to integers

- As you leave the world of basic math and enter the world of algebra, you'll be introduced to a whole new set of numbers. This set of numbers is called integers. So what is an integer? Well, we're gonna take a look at a number line. You're very familiar with the numbers that are to the right of zero, these are the positive numbers. All positive whole numbers are integers. To the left of zero we have negative numbers. The negative whole numbers are also integers. And zero, zero is also considered an integer. So now that you know what an integer is we're going to categorize a few numbers and see if we can determine if they are integers or if they are not integers. Remember that an integer is a whole number that can be positive, negative, or zero. In order to help us to better understand integers we're going to categorize a few numbers together. Let's start with the number -2. - 2 is an integer because it's a whole number and it's negative. Let's take a look at another example. - 1.25…

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