Build and break apart two-digit numbers - without models
Master the skills and concepts for: Build and break apart two-digit numbers - without models.
Concept
**What you'll learn** This lesson covers **Build and break apart two-digit numbers - without models**. Understanding this topic builds your mathematical foundation and connects to other ideas in the course. **Key ideas** Work through the definitions, examples, and procedures. Pay attention to when and how to apply the main concept. Practice with the exercise below to reinforce your understanding. **Why it matters** These skills appear in later lessons and in real-world applications. Take time to check your work and use the quiz to confirm you've got the main idea.
Try it
Practice: Build and break apart two-digit numbers - without models. 1. Work through one example from the concept section. 2. Try a similar problem with different numbers or a slight variation. 3. Explain in one sentence how you knew what to do.