Copyright

Ch 3: Estimation & Rounding

About This Chapter

The trendy videos in this lesson are aimed to show 3rd-5th graders how to use estimation and rounding in everyday situations. Lesson quizzes and a chapter exam are also available to reinforce estimation and rounding techniques.

Estimation & Rounding - Chapter Summary

Use the video lessons in this chapter to enhance your students' knowledge of estimation and rounding. The short and humorous videos explain the process and uses for rounding whole numbers, decimals and mixed numbers and how to estimate sums, differences, products, quotients and inequalities. Multiple-choice lesson quizzes are included for you to decide if your students are ready to move on, and a concluding chapter exam can help you determine what your students have taken away from this chapter.

Chapter Lessons and Objectives

Lesson Objective
How to Round Whole Numbers Students learn how to round two-digit and three-digit whole numbers to the nearest tens and three-digit whole numbers to the nearest hundreds.
Rounding Numbers to the Nearest 1,000, 10,000 and 100,000 Instructors supply examples and teach rounding to these place values.
Estimating a Difference By Rounding With this lesson, students solve differences by estimating and rounding.
How to Use Front-End Estimation Students learn what front-end estimation is and how to use it to estimate sums and differences
Rounding Decimals and Finding the Missing Digit Instructors explain how to round decimals and how to round decimals and whole numbers in order to find the missing digit.
Estimating the Sum and Difference Between Two Decimals Instructors show how to estimate problems between two decimals.
How to Round Mixed Numbers Students examine the way to round mixed numbers up or down.
How to Estimate Products In this lesson, students learn to approximate products.
How to Estimate Quotients Students learn to estimate division problems.
How to Solve Inequalities Using Estimation Students practice solving inequalities by estimating.

10 Lessons in Chapter 3: Estimation & Rounding
Test your knowledge with a 30-question chapter practice test
How to Round Whole Numbers

1. How to Round Whole Numbers

View this lesson to learn how you can round whole numbers. Practice rounding to the nearest tens and hundreds. Learn which digit you need to look at to know whether to round up or down.

Rounding Numbers to the Nearest 1000, 10,000 & 100,000

2. Rounding Numbers to the Nearest 1000, 10,000 & 100,000

After watching this video lesson, you will be able to round larger numbers like a pro. Learn what the cutoff numbers are for rounding up and down to the nearest thousand, ten thousand and hundred thousand.

Estimating a Difference by Rounding

3. Estimating a Difference by Rounding

After studying this lesson, you will understand rounding basics. You'll also learn how to quickly solve subtraction problems by using your rounding skills.

How to Use Front-End Estimation

4. How to Use Front-End Estimation

In this video lesson, you will learn how to estimate addition and subtraction problems by using the method of front end estimation. Learn what is involved and what you need to be careful of.

Rounding Decimals & Finding the Missing Digit

5. Rounding Decimals & Finding the Missing Digit

After watching this video lesson, you will learn how to round decimals and how to use your knowledge of rounding to help you find a missing digit. Learn what the difference is between rounding decimals and rounding regular numbers.

Estimating the Sum & Difference Between Two Decimals

6. Estimating the Sum & Difference Between Two Decimals

In this video lesson, you will learn how to take an addition or subtraction problem with decimals and estimate the answer by rounding. You will learn that a rounded answer is very close to the actual answer.

How to Round Mixed Numbers

7. How to Round Mixed Numbers

After watching this video lesson, you should be able to round mixed numbers easily and quickly. You will learn about what number to look at to determine whether you should round up or round down.

How to Estimate Products

8. How to Estimate Products

In multiplication problems, sometimes we want to get an answer that is 'close enough,' not exact. In this lesson, you will learn how to estimate products to get a 'close enough' answer.

How to Estimate Quotients

9. How to Estimate Quotients

It may seem crazy to think you can quickly estimate the answer to something like 81,837/95 but by the end of this lesson, you'll be able to easily estimate quotients of simple and more difficult division problems. After the lesson, test your new knowledge with practice examples.

How to Solve Inequalities Using Estimation

10. How to Solve Inequalities Using Estimation

In this lesson, you'll learn how to solve inequality problems without doing a lot of complicated addition and subtraction. We'll explore the process of estimating the quantities on both sides of the inequality symbol, which can be helpful when solving these problems.

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 200 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.

Support