Unit 4, Lesson 2

Keeping the Equation Balanced

Grade 8

Practice

1. Problem 1

   Which of the changes keeps the hanger in balance?

   Select all that apply.

   

    

   1. Adding two circles on the left and a square on the right

   2. Adding two triangles to each side

   3. Adding two circles on the right and a square on the left

   4. Adding a circle on the left and a square on the right

   5. Adding a triangle on the left and a square on the right

2. Problem 2

   Here is a balanced hanger diagram.

   Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and represents the weight of each square. Select all equations that represent a balanced hanger.

   

3. Problem 3

   What is the weight of a square if a triangle weighs 4 grams?

   Explain your reasoning.

   

4. Problem 4

   ForLesson 8: Translating to

5. Problem 5

   ForLesson 1: Writing Equivalent Equations

   Label the arrows to describe each move.