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. Readers follow Carly as she practices breaking numbers down by place value while helping at a recycling drive. This volume meets CCSS Math Standard 2.NBT.A.1.