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| Lesson 1.1: Numbers to 100,000 |
| Lesson 1.2: Numbers to 1,000,000 |
| Lesson 1.3: Comparing and Ordering Numbers |
| Lesson 1.4: Adding and Subtracting Multi-Digit Numbers |
| Lesson 1.5: Rounding and Estimating |
| Lesson 1.6: Real-World Problems: Addition and Subtraction |
| Lesson 2.1: Multiplying by a 1-Digit or 2-Digit Number |
| Lesson 2.2: Quotient and Remainder |
| Lesson 2.3: Dividing by a 1-Digit Number |
| Lesson 2.4: Real-World Problems: Multiplication and Division |
| Lesson 2.5: Factors |
| Lesson 2.6: Multiples |
| Lesson 2.7: Real-World Problems: The Four Operations |
| Lesson 3.1: Equivalent Fractions |
| Lesson 3.2: Comparing and Ordering Fractions |
| Lesson 3.3: Adding and Subtracting Like Fractions |
| Lesson 3.4: Mixed Numbers |
| Lesson 3.5: Improper Fractions |
| Lesson 3.6: Renaming Improper Fractions and Mixed Numbers |
| Lesson 3.7: Adding and Subtracting Mixed Numbers |
| Lesson 3.8: Multiplying Fractions and Whole Numbers |
| Lesson 3.9: Real-World Problems: Fractions |
| Lesson 4.1: Understanding Tenths |
| Lesson 4.2: Understanding Hundredths |
| Lesson 4.3: Comparing and Ordering Decimals |
| Lesson 4.4: Rounding Decimals |
| Lesson 4.5: Fractions and Decimals |
| Lesson 5.1: Length in Customary Units |
| Lesson 5.2: Weight and Volume in Customary Units |
| Lesson 5.3: Real-World Problems: Customary Units of Measure |
| Lesson 5.4: Length in Metric Units |
| Lesson 5.5: Mass and Volume in Metric Units |
| Lesson 5.6: Real-World Problems: Metric Units of Measure |
| Lesson 5.7: Time |
| Lesson 6.1: Area and Unknown Sides |
| Lesson 6.2: Composite Figures |
| Lesson 6.3: Real-World Problems: Area and Perimeter |
| Lesson 7.1: Understanding and Measuring Angles |
| Lesson 7.2: Drawing Angles to 180° |
| Lesson 7.3: Turns and Angle Measures |
| Lesson 7.4: Finding Unknown Angles |
| Lesson 7.5: Drawing Perpendicular and Parallel Line Segments |
| Lesson 8.1: Classifying Triangles |
| Lesson 8.2: Classifying Polygons |
| Lesson 8.3: Symmetric Shapes and Lines of Symmetry |
| Lesson 8.4: Making Symmetric Shapes and Patterns |
| Lesson 9.1: Making and Interpreting a Table |
| Lesson 9.2: Using a Table |
| Lesson 9.3: Line Graphs |