# Ch 26: 4th Grade Math: Operations with Decimals

### About This Chapter

## 4th Grade Math: Operations with Decimals - Chapter Summary

This chapter's entertaining video lessons and multiple-choice quizzes can give your 4th grade student extra practice working with decimals found in number sequences, addition and subtraction sentences, and multiplication and division problems. Lessons also show students how to estimate decimals and make real-world arithmetic problems, like those involving money, easier to solve.

## Chapter Lessons and Objectives

Lesson | Objective |
---|---|

Adding and Subtracting Decimals: Examples & Word Problems | Students learn to maintain place value when adding and subtracting decimals. |

Multiplying and Dividing Decimals: Examples & Word Problems | This lesson shows students how to multiply and divide decimals. |

How to Estimate with Decimals to Solve Math Problems | Students learn how to make problem solving easier by rounding decimals before adding, subtracting, or multiplying them. |

Practice Estimating Sums, Differences and Products of Decimals | This lesson includes additional sample problems for estimating decimals. |

Solving Problems using Decimal Numbers | Instructors outline real-world examples of when students might need to solve math problems that include decimals. |

Solving Number Sequences Involving Decimals | Students learn to find missing decimal numbers in a number sequence. |

Practice Completing Addition and Subtraction Sentences with Decimals | This lesson gives students practice completing addition and subtraction sentences that include decimals. |

Practice Adding Three or More Decimals | Students use skills gained in the previous lessons to solve problems containing three or more decimals. |

### 1. 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.

### 2. 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.

### 3. 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.

### 4. Solving Problems Using Decimal Numbers

Problems involving decimal numbers might sound like a way to torture you, but learning how important these types of problems are in the real world is important. In this lesson, you will see a couple areas in life where you routinely encounter decimal number problems.

### 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.

### 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.

### 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.

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### Other Chapters

Other chapters within the 4th Grade Math: Practice & Review course

- 4th Grade Math: Number Sense & Arithmetic
- 4th Grade Math: Number Properties
- 4th Grade Math: Solving Math Word Problems
- 4th Grade Math: Estimation & Rounding
- 4th Grade Math: Addition
- 4th Grade Math: Subtraction
- 4th Grade Math: Multiplication
- 4th Grade Math: Multiples of Whole Numbers
- 4th Grade Math: Division
- 4th Grade Math: Simplifying Whole Number Expressions
- 4th Grade Math: Basic Algebraic Expressions
- 4th Grade Math: Data & Graphs
- 4th Grade Math: Probability & Statistics
- 4th Grade Math: Units of Measurement
- 4th Grade Math: Introduction to Geometric Figures
- 4th Grade Math: Angles
- 4th Grade Math: Triangles
- 4th Grade Math: Quadrilaterals
- 4th Grade Math: Circles
- 4th Grade Math: Polyhedrons & Geometric Solids
- 4th Grade Math: Perimeter, Area & Volume
- 4th Grade Math: Symmetry, Similarity & Congruence
- 4th Grade Math: Fractions
- 4th Grade Math: Operations with Fractions
- 4th Grade Math: Decimals
- 4th Grade Math: Money
- 4th Grade Math: Time
- 4th Grade Math: The Coordinate Graph
- 4th Grade Math: Patterns & Sequences