Copyright

Ch 3: NES Math: Decimals & Percents

About This Chapter

Refresh your understanding of how to work with percents and decimals, including ways to calculate discounts and interest. Our video lessons and other study aids will help you get ready for these types of questions on the NES Math exam.

NES Math: Decimals & Percents - Chapter Summary

This chapter's lessons review operations with decimals and the process of calculating percents. Our videos can help you get ready for NES Math questions on:

  • Decimal place value
  • Adding, subtracting, multiplying and dividing decimals
  • Rounding decimals
  • Definition and applications of percents
  • How to calculate interest
  • Methods of determining taxes and discounts

Our instructors have created lively lessons, packed with examples, to help you prepare for the NES Math exam. You can watch the lessons from a computer or mobile device whenever you have a few minutes to devote to study. Our Dashboard tracks your progress through the lessons and quizzes, and it even has an ask-an-expert message board through which you can get help if you have a question.

NES Math: Decimals & Percents Chapter Objectives

Several states have made passing the NES Math exam one of the conditions for certification to teach mathematics at the secondary level. The exam consists of five content domains, and questions on the material covered in this chapter are in the Mathematical Processes and Number Sense content domain. This part of the test accounts for 19% of the total score.

The exam is computer-delivered, and all of its questions are multiple-choice, like the short quizzes that accompany each of our lessons. You can use the quizzes to get a feel for the exam format and also to learn where you might need extra study before test day. If you answer a quiz question incorrectly, just click the link in the answer key to return to that portion of the lesson for review.

7 Lessons in Chapter 3: NES Math: Decimals & Percents
Test your knowledge with a 30-question chapter practice test
What is a Decimal Place Value?

1. 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.

Adding and Subtracting Decimals: Examples & Word Problems

2. 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

3. 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 Round Decimals

4. 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.

Percents: Definition, Application & Examples

5. Percents: Definition, Application & Examples

Maybe you know that 95% is an A and 75% is a C. But what do those percents really mean? In this lesson, we'll learn about percents, including how to convert them to fractions and decimals.

How to Solve Interest Problems: Steps & Examples

6. How to Solve Interest Problems: Steps & Examples

If you want to know how your money can earn money, then it's essential to learn about solving interest problems. In this lesson, we'll practice calculating interest amounts and interest rates.

Taxes & Discounts: Calculations & Examples

7. Taxes & Discounts: Calculations & Examples

When you go shopping, you don't want to be surprised by the amount of tax on an item. You also want to fully understand discounts to know how much you can save. In this lesson, we'll practice calculating both tax and discounts.

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

Earning College Credit

Did you know… We have over 160 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Other Chapters

Other chapters within the NES Mathematics (304): Practice & Study Guide course

Support