9, Lesson 2, Unit 4, Grade 8, OpenUp icon
Problem Set

Practice Problems

Lesson 2. Unit 4. Grade 8 Open Up Resources

Open Up ResourcesVaries

This Problem Set is a part of the Lesson 2, Unit 4, Grade 8. In this lesson, students recall a representation that they have seen in prior grades: the balanced hanger. Understand and explain why you can add, subtract, multiply, and divide an expression from each side of an equation when the expressions involve positive numbers. Let's figure out unknown weights on balanced hangers.

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