This engaging 3-digit addition worksheet helps students practice adding large numbers with regrouping. Each problem is designed inside a fun dashed border box, making it visually appealing and easy to follow. Perfect for elementary students to build confidence in solving multi-digit addition problems.

✅ Ideal for Grades 2–4
✅ Includes 8 practice problems
✅ Printable and classroom-ready
✅ Great for math centers, homework, or extra practice