Читать книгу Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online) - Mark Zegarelli - Страница 66

IN THIS CHAPTER

Working with the Big Four operations (addition, subtraction, multiplication, and division)

Identifying which operations are inverses of each other

Knowing the operations that are commutative, associative, and distributive

Performing the Big Four operations on negative numbers

Using four symbols for inequality

Understanding exponents, roots, and absolute values

When you understand the Big Four operations — adding, subtracting, multiplying, and dividing — you can begin to look at math on a whole new level. In this chapter, you extend your understanding of the Big Four operations and move beyond them. I begin by focusing on four important properties of the Big Four operations: inverse operations, commutative operations, associative operations, and distribution. Then I show you how to perform the Big Four on negative numbers.

I continue by introducing you to some important symbols for inequality. Finally, you’re ready to move beyond the Big Four by discovering three more advanced operations: exponents (also called powers), square roots (also called radicals), and absolute values.