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 6th-8th Grade Math: Practice & Review
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Ch 6: 6th-8th Grade Math: Estimating & Rounding

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About This Chapter

The video lessons in the Estimating and Rounding chapter are designed to teach elementary and middle school students about the different ways in which numbers can be rounded and estimated. You can use the chapter examination to ensure your students' understanding of the rules for estimating and rounding numbers.

Estimating and Rounding - Chapter Summary

With the help of the video lessons in this Estimating and Rounding chapter, you can help your students understand the process of rounding decimals and mixed numbers. Your 6th - 8th grade students could also learn to estimate a difference in numbers by rounding. Lessons in using front-end estimation and rounding numbers to the nearest 10,000 are included. The self-assessment quizzes can test your students' grasp of the chapter's material. After they watch each of the video lessons in this chapter, students could understand more about:

  • Tips and strategies that can be applied when rounding numbers
  • The process of finding a difference and calculating an approximate number
  • How to solve sample problems that display the use of front-end estimation
  • The distinct differences between rounding regular numbers and decimals
  • Estimating sums using the rounding method
  • Considering the numerator and denominator when rounding mixed numbers

Chapter Lessons and Objectives

Lesson Objective
Rounding Numbers to the Nearest 1,000, 10,000 and 100,000 Instructors teach students how to perform this process.
Estimating a Difference By Rounding In this lesson, students discover rounding techniques for estimating a difference.
How to Use Front-End Estimation Teachers explain methods for estimating sums and differences in this lesson.
Rounding Decimals and Finding the Missing Digit Students discover techniques for rounding whole numbers and decimals.
Estimating the Sum and Difference Between Two Decimals In this lesson, students complete examples of this process.
How to Round Mixed Numbers Students may provide examples of rounding mixed numbers.

6 Lessons in Chapter 6: 6th-8th Grade Math: Estimating & Rounding
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Rounding Numbers to the Nearest 1000, 10,000 & 100,000

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

Rounding numbers to the nearest 1,000, 10,000, and 100,000 is a useful tool when working with large numbers. Review the function of rounding numbers, and then learn how to round to the nearest 1,000, 10,000, and 100,000.
Estimating a Difference by Rounding

2. Estimating a Difference by Rounding

Estimating a difference by rounding is a useful tool in solving subtraction problems. Learn how rounding numbers can be helpful, and then practice rounding using examples of subtraction problems.
How to Use Front-End Estimation

3. How to Use Front-End Estimation

In mathematics, front-end estimation is a method of rounding numbers to obtain estimates of their differences, as well as their sums. Learn how to use front-end estimation, review rounding, and work through examples to understand how rounding numbers can help estimate the solutions to math problems.
Rounding Decimals & Finding the Missing Digit

4. Rounding Decimals & Finding the Missing Digit

In mathematics, rounding is simplifying a number while retaining the number's approximate original value. Learn about rounding decimals and finding missing digit. Review decimal numbers, rounding decimals, finding a missing digit, and examples.
Estimating the Sum & Difference Between Two Decimals

5. Estimating the Sum & Difference Between Two Decimals

Numbers with decimals can be added and subtracted to identify their sum or difference. Practice this using the provided example problems that demonstrate how to round decimals.
How to Round Mixed Numbers

6. How to Round Mixed Numbers

Learning how to round mixed numbers is a simple way to estimate fractions. Review mixed numbers and rounding, and then practice rounding mixed numbers using examples.
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Practice Final Exam
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