Unit 8: Relationships Among Numbers

8 Introduction

In this unit, we will look at other ways numbers can be expressed. Whether you are shopping around for the best deal, or reading an article online, understanding percentages and ratios can be useful in your everyday life.

Practice Quiz

Check your understanding of percentages and related calculator skills before you start, by giving the Unit 8 pre quiz a try, then use the feedback to help you plan your study.

The quiz does not check all the topics in the unit, but it should give you some idea of the areas you may need to spend most time on. Remember, it doesn’t matter if you get some or even all of the questions wrong—it just indicates how much time you may need for this unit!

Click here for the pre quiz. [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]

8.0.1 What to Expect in this Unit