Naomi Paz 
At the Hardware Store [PDF ebook] 
Understand Place Value

Engaging story lines and relatable contexts assist readers in understanding the fundamentals of numbers and operations in base ten. Students will learn how to extend the count sequence and gain an understanding of place value in order to apply that understanding to addition and subtraction equations. Age-appropriate text and eye-catching visuals make these concepts easy to understand for beginning math students. Readers will take a trip to the hardware store, where tools become objects used to teach about place value. This volume satisfies CCSS Math Standard 1.NBT.B.2. This book should be paired with "Jose’s Hardware Store" (9781477721926) from the Info Max Math Readers Program to provide the alternative point of view on the same topic.