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Chapter 3: Using Addition and Subtraction
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Course:
3rd Grade
L1: Introducing Magic Squares
L2: Completing Magic Squares
L3: How Many Marbles?
L4: Reasoning About Money
L5: Drawing Conclusions
L6: Using the Fewest Coins
L7: Adding and Subtracting with Coins
L8: Estimating Sums and Differences
L9: Problem Solving Strategy and Test Prep: Work Backward
‹ L9: Writing Number Sentences for Intersecting Lines
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L1: Introducing Magic Squares ›
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Courses
1st Grade
2nd Grade
3rd Grade
Chapter 1: Building Operations
Chapter 2: Multiplication Situations GR3
Chapter 3: Using Addition and Subtraction
L1: Introducing Magic Squares
L2: Completing Magic Squares
L3: How Many Marbles?
L4: Reasoning About Money
L5: Drawing Conclusions
L6: Using the Fewest Coins
L7: Adding and Subtracting with Coins
L8: Estimating Sums and Differences
L9: Problem Solving Strategy and Test Prep: Work Backward
Chapter 4: Grouping, Regrouping, and Place Value
Chapter 5: Understanding Addition and Subtraction Algorithms
Chapter 6: Rules and Patterns
Chapter 7: Fractions GR3
Chapter 8: Charts and Graphs
Chapter 9: Exploring Multiplication
Chapter 10: Length, Area and Volume
Chapter 11: Geometry
Chapter 12: Multiplication Strategies
Chapter 13: Time, Temperature, Weight, and Capacity
Chapter 14: Addition and Subtraction in Depth
Chapter 15: Multiplication and Division
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Kindergarten