# Digits, Grade 7, Volume 1, Homework Helper

## Contents

• Authors and Advisors vi

• Using the Homework Helper viii

• Grade 7 TEKS x

• Unit A: Number and Operations

• Topic 1: Operations with Rational Numbers

• 1-1: Rational Numbers, Opposites, and Absolute Value 1

• 1-2: Adding Rational Numbers 9

• 1-3: Subtracting Rational Numbers 17

• 1-4: Multiplying Rational Numbers 23

• 1-5: Dividing Rational Numbers 29

• 1-6: Operations With Rational Numbers 36

• 1-7: Additional Problem Solving 42

• Unit B: Expressions, Equations, and Relationships

• Topic 2: Equations & Inequalities

• 2-1: Solving Simple Equations 47

• 2-2: Writing Two-Step Equations 53

• 2-3: Solving Two-Step Equations 58

• 2-4: Solving Simple Inequalities 64

• 2-5: Solving Two-Step Inequalities 72

• 2-6: Writing Problem Situations 79

• 2-7: Additional Problem Solving 83

• Unit C: Measurement and Geometry

• Topic 3: Angles

• 3-1: Measuring Angles 90

• 3-2: Adjacent Angles 97

• 3-3: Complementary Angles 101

• 3-4: Supplementary Angles 105

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