Introduction to integers

Integers are a set of whole numbers and their opposites, that means that  they can be either positive, negative or zero.

To understand the order of integers we need to know how the number line works.

This means that the farther away a negative number gets from zero, going to the left, the smallest that number is. 

Now let's practice this concept: 

If you need further explaination I recommend you to check the following video: Intro to negative numbers.