Ch 1: Number Systems & Theory

About This Chapter

This fun chapter offers the knowledge boost you need to excel on an assignment, quiz or test that covers number systems and theory. Improve your understanding with help from engaging lessons, and assess your comprehension by taking multiple-choice quizzes.

Number Systems & Theory - Chapter Summary

Enjoy this well-rounded overview of number systems and theory, designed to strengthen your grasp of composite numbers, rational exponents, scientific notation and more. Bite-sized lessons provide thorough definitions and examples to improve your understanding of these concepts. Review the lessons anytime using any computer or mobile device with an Internet connection. Take short quizzes and a practice exam to assess your knowledge. Utilizing these learning and study tools will enable you to do the following:

  • Define composite numbers
  • Identify prime and composite numbers
  • Share definitions and examples of twin prime, rational and irrational numbers
  • Find the absolute value of a real number
  • Exhibit knowledge of rational exponents
  • Provide examples of and convert numbers to scientific notation
  • Compare numbers written in scientific notation

10 Lessons in Chapter 1: Number Systems & Theory
Test your knowledge with a 30-question chapter practice test
What Are Composite Numbers? - Definition & Examples

1. What Are Composite Numbers? - Definition & Examples

In this lesson, you'll learn what composite numbers are and briefly touch on prime numbers. You'll also learn a couple of rules about composite numbers. Then, you can test your new knowledge with a brief quiz.

Identifying Prime & Composite Numbers

2. Identifying Prime & Composite Numbers

In this video lesson, you will learn how to identify both prime and composite numbers. You will also learn what makes the numbers unique, as well as the characteristics of both these types of numbers.

What Are Twin Prime Numbers?

3. What Are Twin Prime Numbers?

There are all kinds of numbers: even, odd, positive, negative, and prime numbers, just to name a few. Did you know that there are even twin prime numbers? In this lesson, you'll learn what twin prime numbers are and some interesting facts about them.

What are Rational Numbers? - Definition & Examples

4. What are Rational Numbers? - Definition & Examples

In this lesson, we will learn about rational numbers and their characteristics. We'll discover what they are, what they aren't and how to distinguish them from other types of numbers.

What are Irrational Numbers? - Definition & Examples

5. What are Irrational Numbers? - Definition & Examples

Irrational numbers may not be crazy, but they do sometimes bend our minds a little. Learn about common irrational numbers, like the square root of 2 and pi, as well as a few others that businessmen, artists, and scientists find useful.

Finding the Absolute Value of a Real Number

6. Finding the Absolute Value of a Real Number

You can find the absolute value of any real number. This lesson will define absolute value, explain what real numbers are and give the steps to finding the absolute value of any real number.

Rational Exponents

7. Rational Exponents

In this video, learn how to go from a rational exponent to a radical expression and back. No tricks or magic, just good math! We'll review the basics and look at a few examples.

Scientific Notation: Definition and Examples

8. Scientific Notation: Definition and Examples

Scientific notation is a special way of writing numbers so they are easier to work with. This lesson will define scientific notations and show some examples of how to convert numbers from standard notation to scientific notation and back.

Converting Numbers to Scientific Notation

9. Converting Numbers to Scientific Notation

After watching this video lesson, you will be able to convert any number you come across into scientific notation. You will also learn why scientific notation is used and where you are most likely to see it.

Comparing Numbers Written in Scientific Notation

10. Comparing Numbers Written in Scientific Notation

After watching this video lesson, you will be able to compare numbers written in scientific notation with each other. You will learn how to tell which is larger and which is smaller.

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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