This Eureka Math Grade 2 Module 3, Lesson 6 resource helps students develop a strong understanding of expanded form by breaking apart three-digit numbers into the total value of each place. Students begin with engaging fluency practice, including: Addition using meter strips with regrouping Unit form counting (including hundreds) Mental math strategies like “Make 10” During concept development, students use place value boxes, straws, and Hide Zero cards to: Count and build numbers using