Lesson objective: Use the distributive property to create equivalent expressions to calculate with percents.

This lesson helps to build fluency with creating equivalent expressions to flexibly calculate with percents. Double number lines are used here because they support the development of multiplicative reasoning. This work develops students' understanding that the distributive property allows for using a variety of expressions to calculate with percents.

Students engage in Mathematical Practice 2 (reason abstractly and quantitatively) as they make sense of the quantities and their relationships.

**Key vocabulary:**

- percent
- distributive property
- expression
- double number line