Unit 1, Lesson 7# Representing and Solving Subtraction Problems Using a Crossing Out Strategy

Massachusetts Department of Elementary and Secondary Education 60 min(s)

The focus of this lesson is for students to model the concept of taking apart numbers. Independent story problem Pencils, crayons or markers. The focus of this lesson is for students to model the concept of taking apart numbers. The students will represent subtraction by crossing out pictures. The students will represent subtraction by crossing out pictures.