# Ch 8: ASVAB Math: Types of Numbers

### About This Chapter

## ASVAB Math: Types of Numbers - Chapter Summary

Learn to correctly identify and describe the different types of numbers and understand how they are used in order to get ready for any related questions on the ASVAB Math subtest. The topics you'll know about after you're done studying this chapter include:

- Finding absolute value
- Graphing and notation for rational numbers
- Imaginary numbers
- Rational number, fraction and decimal notation
- Grouping of rational numbers on a number line
- Prime numbers
- Natural numbers
- Inequalities
- Composite numbers

You will get to know the content in these lessons well through this chapter's helpful examples and engaging video lessons. Our professional instructors use multiple teaching methods to boost learning and retention of the material.

### Objectives of the ASVAB Math: Types of Numbers Chapter

The ASVAB is administered as a paper-and-pencil test, but it's also available in a computer-based format. The material in this chapter's lessons prepares you for questions about various types of numbers. The Mathematics Knowledge subtest is about 11% of the whole ASVAB with 16 questions on the computer version and 25 questions on the paper-and-pencil exam. Try the quick self-assessment quizzes across the chapter to get helpful practice with questions very similar to those you may see on the exam.

### 1. What are the Different Types of Numbers?

Learn all of the different types of numbers: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. This video lesson teaches you how to classify any numbers you come across.

### 2. Graphing Rational Numbers on a Number Line

Number lines have many uses both in mathematics and everyday life. This lesson will teach you how to graph numbers on a number line and give real-world examples of how to use number lines.

### 3. Notation for Rational Numbers, Fractions & Decimals

How do fractions become decimals? And how do decimals become fractions? In this lesson, we'll learn about the notation of rational numbers, fractions and decimals and learn how they're related.

### 4. The Order of Real Numbers: Inequalities

An inequality is an operation describing how one number can be compared to another. This lesson will describe and define inequalities and the symbols used to represent them. It will also give some examples on how to work with inequalities.

### 5. 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.

### 6. What is an Imaginary Number?

The imaginary number 'i' is the square root of -1. Although this number doesn't actually exist, pretending that it does allows us to do a bunch of crazy math that scientists use every day. Learn the basics of that number 'i' here!

### 7. What are Natural Numbers? - Definition & Examples

The natural numbers are simply the counting numbers you first learned as a child. In this lesson, you will learn a little about the natural numbers, as well as a little about the confusion surrounding zero.

### 8. What Are Prime Numbers? - Definition & Examples

In this lesson, we'll do a brief review of factors, and then learn how factors make prime numbers unique. You can also test your knowledge with a brief quiz.

### 9. 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.

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### Other Chapters

Other chapters within the ASVAB Mathematics Knowledge: Study Guide & Test Prep course

- ASVAB Math: Basic Arithmetic
- ASVAB Math: Math Expressions and Formulas
- ASVAB Math: Solving Math Word Problems
- ASVAB Math: Rounding Numbers and Decimals
- ASVAB Math: Fractions
- ASVAB Math: Factorials in Math
- ASVAB Math: Reciprocals
- ASVAB Math: Patterns & Sequences
- ASVAB Math: Exponents
- ASVAB Math: Properties of Exponents
- ASVAB Math: Algebraic Expressions and Equations
- ASVAB Math: Factoring
- ASVAB Math: Quadratic Equations
- ASVAB Math: Working with Quadratic Equations
- ASVAB Math: Inequalities
- ASVAB Math: Calculating Interest
- ASVAB Math: Circles
- ASVAB Math: Geometry
- About the ASVAB Test
- ASVAB Mathematics Knowledge Flashcards