# Ch 12: 3rd Grade Math: Simplifying Whole Number Expressions

### About This Chapter

## Simplifying Whole Number Expressions - Chapter Summary

When you utilize the video lessons in the Simplifying Whole Number Expressions chapter, you can ensure that your 3rd grade students understand the procedures involved in the simplifying of addition, subtraction, division and multiplication whole number expressions. The video tags in the lessons permit you to move from one area to another. You can also test your students' knowledge of whole number expressions by administering the lesson quizzes and the chapter examination.

## Chapter Lessons and Objectives

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

How to Simplify an Addition Expression | Instructors teach 3rd graders how to simplify an addition expression. |

How to Simplify a Subtraction Expression | Students learn the rules for working with subtraction expressions. |

How to Simplify a Multiplication Expression | In this lesson, students have opportunities to solve multiplication expression examples. |

How to Simplify a Division Expression | Teachers explain the techniques for simplifying division expressions. |

How to Solve an Expression with Parentheses and Exponents | During this lesson, instructors teach students about the process of simplifying expressions with exponents and parentheses. |

### 1. How to Simplify an Addition Expression

Addition expressions are mathematical expressions with the addition symbol. Learn how to simplify an addition expression with variables by practicing and analyzing the given examples.

### 2. How to Simplify a Subtraction Expression

Simplifying a subtraction expression is as simple as combining like terms. Learn about subtraction expressions and how to simplify them, then practice simplifying subtraction expressions using examples.

### 3. How to Simplify a Multiplication Expression

Solving multiplication expressions is made easier by simplifying. Learn how to simplify a multiplication expression and practice simplifying by using examples.

### 4. How to Simplify a Division Expression

Mathematical problems involving division can be written as division expressions to be solved easier. Learn how to simplify a division expression by finding factors through examples.

### 5. How to Simplify an Expression with Parentheses & Exponents

Mathematical expressions can utilize parentheses and exponents to notate calculations differently. See how the order of operations (PEMDAS) creates consistency when notating these expressions through a series of examples.

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### Other Chapters

Other chapters within the 3rd Grade Math: Practice & Review course

- 3rd Grade Math: Number Sense & Arithmetic
- 3rd Grade Math: Number Properties
- 3rd Grade Math: Solving Math Word Problems
- 3rd Grade Math: Estimation & Rounding
- 3rd Grade Math: Addition
- 3rd Grade Math: Subtraction
- 3rd Grade Math: Multiplication
- 3rd Grade Math: Multiples of Whole Numbers
- 3rd Grade Math: Multiplication Skills Practice
- 3rd Grade Math: Division
- 3rd Grade Math: Division Skills Practice
- 3rd Grade Math: Basic Algebraic Expressions
- 3rd Grade Math: Writing Algebraic Expressions
- 3rd Grade Math: Data & Graphs
- 3rd Grade Math: Probability & Statistics
- 3rd Grade Math: Units of Measurement
- 3rd Grade Math: Introduction to Geometric Figures
- 3rd Grade Math: Angles
- 3rd Grade Math: Triangles
- 3rd Grade Math: Quadrilaterals
- 3rd Grade Math: Perimeter, Area & Volume
- 3rd Grade Math: Symmetry, Similarity & Congruence
- 3rd Grade Math: Fractions
- 3rd Grade Math: Decimals
- 3rd Grade Math: Money
- 3rd Grade Math: Time