Introduction

Learning Outcomes

By the end of this chapter, you should be able to

• Apply the order of operations, excluding exponents, with and without technology (limited to whole numbers)
• Add and subtract integers
• Multiply and divide integers
• Add and subtract positive fractions and mixed numbers with like and unlike denominators (limited to positive sums and differences)
• Multiply and divide positive fractions and mixed numbers
• Solve problems that can be represented by one-step linear equations of the form x + a = b, where a and b are integers
• Solve problems using linear equations

Unit Overview

In this unit, you will learn about rational numbers and equations. You will learn how to perform operations on rational numbers, solve equations, and write an equation to represent and solve a real-world situation. Rational numbers are used daily in various areas, including cooking, managing finances, and construction. An equation could be created to figure out how long it will take to get to your destination going a specific speed. Your energy consumption and efficiency could also be represented with an equation that could help reduce costs.