What’s in a Sum?

Students add mixed numbers with unlike denominators in mathematical and real-world contexts. Note: The Show What You Know screens, PDF, and Answer Key PDF were updated on 1/12/2026.

By Amplify Classroom

Grades: 5th Grade

Subject: Math

Learning goals: Today’s Goals • Add mixed numbers with unlike denominators. • Language Goal: Justify the reasonableness of sums involving mixed numbers with unlike denominators. (Speaking and Listening) Materials Classroom materials: chart paper, markers