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Practice Set A

Answers

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COURSE INTRODUCTION

Course Syllabus

Unit 1: Number Properties

Unit 1 Learning Objectives

1.1 Commutative Law of Addition and Multiplication

1.1 Introduction and Key Insights

Commutative and Associative Properties

Commutative Law of Addition

Commutative Law of Multiplication

1.1 Quick Check

1.2 Associative Law of Addition and Multiplication

1.2 Introduction and Key Insights

Commutative and Associative Properties

Associative Law of Addition

Properties of Addition Exercises

Associative Law of Multiplication

Associative Law of Addition and Multiplication

1.2 Quick Check

1.3 The Additive Identity

1.3 Introduction and Key Insights

Identity Property of 1

1.3 Quick Check

1.4 Inverse Property of Addition

1.4 Introduction and Key Insights

Inverse Property of Addition

Inverse Property of Addition

1.4 Quick Check

1.5 The Multiplicative Identity

1.5 Introduction and Key Insights

Identity Property of Zero

1.5 Quick Check

1.6 Inverse Property of Multiplication

1.6 Introduction and Key Insights

Inverse Property of Multiplication

Inverse Property of Multiplication

1.6 Quick Check

1.7 Multiplication by Zero

1.7 Introduction and Key Insights

Multiplication by Zero

1.8 Dividing by Zero Is Undefined

1.8 Introduction and Key Insights

Why Dividing by Zero Is Undefined

Dividing by Zero Is Undefined

1.8 Quick Check

1.9 Distributive Property

1.9 Introduction and Key Insights

Using the Distributive Property

The Distributive Law of Multiplication

1.9 Quick Check

Unit 2: Common Multiples and Common Factors

Unit 2 Learning Objectives

2.1 Greatest Common Factor

2.1 Introduction and Key Insights

Greatest Common Divisor

The Greatest Common Factor

2.1 Quick Check

2.2 Least Common Multiple

2.2 Introduction and Key Insights

The Least Common Multiple

Least Common Multiple

LCM and GCF Word Problems

2.2 Quick Check

Unit 3: The Order of Operations

Unit 3 Learning Objectives

3.1 Negative Numbers

3.1 Introduction and Key Insights

Introduction to Integers

Negative Numbers Introduction

3.1 Quick Check

3.2 Adding and Subtracting Negative Numbers

3.2 Introduction and Key Insights

Adding Negative Numbers

Addition with Negative Numbers Exercises

Subtracting Negative Numbers

Subtraction with Negative Numbers Exercises

3.2 Quick Check

3.3 Multiplying and Dividing Integers with Different Signs

3.3 Introduction and Key Insights

Multiplying and Dividing Integers

Multiplying Positive and Negative Numbers