Exploring Decimal Addition and Subtraction

Students use place value strategies to add and subtract decimals. Note: Activity 1 was updated in the Student Edition PDF and the Student Edition (Answers) PDF on 1/12/2026.

By Amplify Classroom

Grades: 5th Grade

Subject: Math

Learning goals: Today’s Goals • Add and subtract decimals to the hundredths using any representation or strategy. • Language Goal: Explain how adding and subtracting with decimals is similar to adding and subtracting with whole numbers. (Speaking and Listening) Materials Lesson Resources: Decimal Grids PDF (optional); Manipulative Kit: base-ten units (optional), hundreds flats (optional), tens rods (optional)