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Ch 27: Adding, Subtracting, Multiplying & Dividing Decimals

About This Chapter

The video lessons in this chapter on adding, subtracting, multiplying and dividing decimals reinforce what your 3rd through 5th graders learn in school about solving decimal problems. Lesson quizzes help you gauge how well your students understand the material.

Adding, Subtracting, Multiplying & Dividing Decimals - Chapter Summary

These fun, five-minute videos bolster 3rd through 5th grade students' comprehension of working with decimals in math. Our math instructors break down the complexity of decimal problems into easy to understand chunks to help students get the most out of each lesson. These lessons cover the fundamentals of decimals, including place value and ordering decimal numbers, as well as solving arithmetic problems. If your students have a question about the lessons, they can submit it to our instructors. After they've watched these video lessons, have your students take the chapter exam to review what they have learned.

Chapter Lessons and Objectives

LessonObjective
Working with Decimals Students learn all about how decimals are used in math, including reading and writing decimals and scientific notation.
What is a Decimal Place Value? Instructors explain decimal place value.
Using Word Names for Decimal Numbers Your students will learn to use word names for decimal numbers.
Representing Decimals Through Illustrations This lesson will teach how to identify a decimal number represented in an illustration.
Comparing and Ordering Decimals Our experts show how to compare and order decimals.
Inequalities with Decimals Instructors demonstrate how to solve inequality problems with decimals.
Changing Between Decimals and Fractions Pupils determine how to convert decimals to fractions.
Converting Decimals to Mixed Numbers In this brief lesson, 3rd-5th graders are taught how to change decimals to mixed numbers.
Adding and Subtracting Decimals This video explains how to add and subtract decimals.
Multiplying and Dividing Decimals Students learn to multiply and divide decimals and practice these skills by solving problems.
How to Estimate Decimals in Math Instructors explain how to estimate decimals to solve problems.
Practice Estimating Sums, Differences, and Products of Decimals Your students practice what they have learned in previous lessons by solving decimal problems.
Solving Problems Using Decimal Numbers Students solve problems using fractions or decimals.
Solving Number Sequences Involving Decimals The instructors show how to solve number sequences that involve decimals.
Practice Completing Addition and Subtraction Sentences with Decimals Pupils practice how to complete addition or subtraction sentences with decimals.
Practice Adding Three or More Decimals Experts explain how to add three or more decimals numbers.

7 Lessons in Chapter 27: Adding, Subtracting, Multiplying & Dividing Decimals
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.

Representing Decimals Through Illustrations

2. Representing Decimals Through Illustrations

In this lesson we will briefly review decimals and the relationship to place value. We will learn how decimals can be represented in illustrations, specifically using a grid.

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.

Changing Between Decimals and Fractions

4. Changing Between Decimals and Fractions

In this video lesson, you will learn about the usefulness of knowing how to change quickly between decimals and fractions. You will also learn how changing from a decimal to a fraction is different than changing from a fraction to a decimal.

Solving Number Sequences Involving  Decimals

5. Solving Number Sequences Involving Decimals

We work with decimals when we see prices at the store and count money, and sometimes we use decimals when we take measurements. In this lesson, we'll focus on completing number sequences involving decimals.

Practice Completing Addition and Subtraction Sentences with Decimals

6. Practice Completing Addition and Subtraction Sentences with Decimals

Decimal numbers occur in many different contexts. It is important to know how to use them in basic operations, such as addition and subtraction. In this lesson, you will practice adding and subtracting decimal numbers.

Practice Adding Three or More Decimals

7. Practice Adding Three or More Decimals

This lesson gives a short and easy way to add 3 or more decimals. It explains step by step how to set up a decimal addition problem and how to do the problem. It also explains some new words that you should know when adding decimals.

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

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