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Ch 9: Saxon Algebra 1/2: Number Theory

About This Chapter

The Number Theory chapter of this Saxon Algebra 1/2 Companion Course helps students learn the essential lessons associated with number theory. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Number Theory textbook chapter.

How It Works:

  • Identify the lessons in the Saxon Number Theory chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the number theory topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Divisibility by numbers 2 through 10
  • The definition for a multiple
  • What the least common multiple is
  • Division with rational expressions
  • How the greatest common factor is defined
  • Inverse operations

Saxon is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

8 Lessons in Chapter 9: Saxon Algebra 1/2: Number Theory
Test your knowledge with a 30-question chapter practice test
Divisibility by 2, 3, and 4

1. Divisibility by 2, 3, and 4

In this video lesson, you will learn what it means to be divisible. Also, you'll see what numbers are divisible by 2, 3, and 4. You will also learn how you can check if something is divisible by these numbers.

Divisibility by 5, 6, and 7

2. Divisibility by 5, 6, and 7

In this video lesson, we will see what numbers can be divided equally by 5, 6, and 7. Learn the pattern that you can use to find other numbers divisible by 5, 6 and 7. Learn how you can visualize divisibility.

Divisibility by 8, 9, and 10

3. Divisibility by 8, 9, and 10

In this video lesson, we will see what numbers are divisible by 8, 9, and 10. You will learn how you can figure out these numbers yourself. Learn what it means to be divisible.

What is a Multiple in Math? - Definition & Overview

4. What is a Multiple in Math? - Definition & Overview

In this lesson we will learn about multiples, a useful concept usually introduced in grammar school multiplication tables. Understanding multiples allows you to find the least common multiple or least common denominator for two or more numbers.

How to Find the Least Common Multiple

5. How to Find the Least Common Multiple

The least common multiple of two numbers is the smallest number that can be divided evenly by your two original numbers. See some examples of what I'm talking about here!

Division and Reciprocals of Rational Expressions

6. Division and Reciprocals of Rational Expressions

In this video lesson, you will learn how to divide and take the reciprocal of any rational expression. Learn the one easy step you take to be able to find your answer quickly and easily.

How to Find the Greatest Common Factor

7. How to Find the Greatest Common Factor

If the factors of a number are the different numbers that you can multiply together to get that original number, then the greatest common factor of two numbers is just the biggest one that both have in common. See some examples of what I'm talking about here!

Inverse Operations in Math: Definition & Examples

8. Inverse Operations in Math: Definition & Examples

In mathematics, inverse operations are operations that 'undo' each other. Most operations have an inverse. This lesson describes the most common operations and their inverses, and it provides some examples and a quiz to cement your knowledge.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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