Return to Unit List Grade 3 Unit 3: Subtraction   Subtraction Strategies Garden Club   Crossword Puzzle   Identification Lesson 1: Algebra: Relate Addition and Subtraction Lesson 2: Problem Solving: Identify Extra Information Lesson 3: Algebra: G37Subtraction Patterns Lesson 4: Explore Regrouping in Subtraction Lesson 5: Subtract Whole Numbers   Subtract Greater Numbers Trees   Crossword Puzzle   Concentration Lesson 1: Regroup Across Zeros Lesson 2: Estimate Differences Lesson 3: Problem Solving Strategy: Write a Number Sentence Lesson 4: Subtract Greater Numbers Chapter 6 Writing for Math Lesson 5: Choose a Computation Method Which Items Can You Buy?