Common Core Alignment

CCSS.Math.Content.2.OA.1 - Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.1

5: Math

Unit 2: Addition and Subtraction/Fact Power!
Lesson 2: So Many More Ways to Add
Lesson 3: Problem Solving with Addition
Lesson 4: Time to Subtract!
Lesson 5: Problem Solving with Subtraction
Lesson 8: Adding and Subtracting to Solve Problems
Final Project: Mathematical Ocean Adventure