Ch 4: ASVAB Math: Rounding Numbers and Decimals

About This Chapter

Become familiar with the process of estimating numbers and decimals by looking at the lessons in this chapter. You'll receive thorough preparation for any relative questions on the ASVAB Math test through our professional instructors' fun teaching styles.

ASVAB Math: Rounding Numbers and Decimals - Chapter Summary

The material you'll learn in this chapter about estimating with decimals will be used to help with solving math problems and addressing questions on the ASVAB Math test. The focus areas that you'll see in this chapter include the following:

  • Making comparisons between decimals
  • Decimal place value
  • Zeros and decimals
  • Rules for rounding numbers
  • Decimal addition and subtraction
  • Multiplying and dividing decimals

The chapter's text lessons are full of informative content presented in an engaging manner with numerous examples to increase your understanding. The video lessons break down the main topics throughout the chapter and serve as a fun study tool.

Objectives of the ASVAB Math: Rounding Numbers and Decimals Chapter

On the ASVAB, you'll find that the Mathematics Knowledge (MK) subtest is about 11% of the exam. You have the option of taking the exam in a paper-and-pencil format or a computer format. The questions you'll come across will ask you to select a response from different options. The time limit for the MK subtest on paper is 24 minutes and for the computer type, it's 20 minutes. In addition to studying the text and video lessons, you can take practice quizzes throughout the chapter to get even more preparation for any test items concerned with rounding and operations with decimals.

8 Lessons in Chapter 4: ASVAB Math: Rounding Numbers and Decimals
Test your knowledge with a 30-question chapter practice test
Rounding Numbers: Definition & Rules

1. Rounding Numbers: Definition & Rules

Rounding a number is useful when you want to estimate a value. To round a number, you need to follow three simple steps, which you will learn in this lesson.

What is a Decimal Place Value?

2. What is a Decimal Place Value?

In this video lesson, you will see how a decimal, a simple dot, can change the place value of all the digits in a number. You will also learn how to read decimals using place values.

Comparing and Ordering Decimals

3. Comparing and Ordering Decimals

In this video lesson, you'll find out how you can look at any two decimals and immediately tell which is greater than the other. You'll also learn how to quickly sort decimals from least to greatest or vice versa.

How Zeros Are Used in Decimals

4. How Zeros Are Used in Decimals

Zero is a very small but also very important digit. Watch this lesson and learn how it is used in decimal numbers to keep place and for accuracy purposes.

How to Round Decimals

5. How to Round Decimals

After watching this video lesson, you will be able to look at any decimal number and round it any which way you want. Learn the tipping point that determines whether to go up to the next number or not.

Adding and Subtracting Decimals: Examples & Word Problems

6. Adding and Subtracting Decimals: Examples & Word Problems

In math, we sometimes have to deal with decimal numbers instead of our nice whole numbers. Watch this video lesson to learn the one thing that you have to take into consideration when adding and subtracting decimals.

Multiplying and Dividing Decimals: Examples & Word Problems

7. Multiplying and Dividing Decimals: Examples & Word Problems

Watch this video lesson to learn what you need to do to get a correct answer when multiplying and dividing decimals. Learn the easy tricks to figuring out where the decimal point goes.

How to Estimate with Decimals to Solve Math Problems

8. How to Estimate with Decimals to Solve Math Problems

Watch this video lesson to learn how you can estimate problems with decimals in them so you can get a quick answer when you need it - for example, when you are at the gas station and you need to know how much gas you can afford.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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