What’s Your First Move?

Students use place value understanding to subtract a two-digit number from a two-digit number when a ten must be decomposed. Note: Activities 1 and 2 were updated in the Teacher Edition PDF and in the Teacher Presentation Screens on 1/12/2026.

By Amplify Classroom

Grades: 2nd Grade

Subject: Math

Learning goals: Today’s Goals • Use place value understanding to subtract a two-digit number from a two-digit number when a ten must be decomposed. • Language Goal: Explain place-value based strategies in which a ten must be decomposed. (Writing, Speaking, and Listening) • Language Goal: Compare how base-ten diagrams and equations can be used to represent subtracting by place. (Speaking and Listening) Materials Lesson Resources: Graphic Organizer PDF, Place Value Mat; Manipulative Kit: base-ten blocks