Read up to Try It exercise 3.10. This section explains the concept of negative numbers using number lines. Pay close attention to the section on opposite notation, which will come up frequently in the next few sections of this course. Do examples 3.2 through 3.5 and check your answer.

Click https://cnx.org/contents/yqV9q0HH@19.9:EjCWRC94@25/3-1-Introduction-to-Integers link to open resource.