Chapter 3
Chapter 5
5.1 & 5.2: Algebra: Break Apart Ones & Tens to Subtract
5.3: Model Regrouping for Subtraction
5.4-5.6: Model and Record 2-Digit Subtraction
5.7: Rewrite 2-Digit Subtraction
5.8: Add to Find Differences
5.11: Multistep Problems
Chapter 4
4.1: Break Apart Ones to Add
4. 2-Compensation
4.3: Break Apart Tens & Ones to Add
4.4: Model Regrouping for Addition
4.5: Model & Record Two-Digit Addition
4.6: Two-Digit Addition
4.9, 4.10, 4.11 : Algebra