Understanding the principles of base ten is essential to understanding numbers and operations. Students will become familiar with the concept of place value through engaging narratives and real-life situations. Students will then be challenged to use place value in the context of algebraic operations, demonstrating the knowledge they’ve gained from reading. Eye-catching visuals help walk readers through the math problems, while age-appropriate language encourages learning. Place value is the tool used to teach readers interesting facts about some of the United States’ most historical buildings. This volume meets CCSS Math Standard 2.NBT.B.9.