Pond Games

Students explore different ways to subtract within `1,000` by place when a hundred and a ten must be decomposed.

By Amplify Classroom

Grades: 2nd Grade

Subject: Math

Learning goals: Today’s Goals • Use place value understanding to subtract within `1,000`, decomposing hundreds and tens when necessary. • Language Goal: Compare subtraction strategies and representations of base-ten diagrams and justify why they work. (Speaking and Listening) Materials Manipulative Kit: base-ten blocks (as needed); Classroom materials: Three-Digit Place Value Mats (as needed, from Unit 5)