## What you’ll learn to do: Understand the basics of whole numbers

Even though counting is first taught at a young age, mastering mathematics, which is the study of numbers, requires constant attention and practice. If it has been a while since you’ve studied math, it can be helpful to review basic topics. In this chapter, we’ll focus on numbers used for counting as well as four arithmetic operationsâ€”addition, subtraction, multiplication, and division. We will also discuss some vocabulary that will be used throughout this course.