As students begin exploring the Distributive Property of Multiplication they learn to find the greatest common factor (or at least a common factor) to write equivalent expression. This download has two worksheets that can be used to help students master this skill. I use the first worksheet to work together with students to write equivalent expressions, then I have them complete the second worksheet for homework. It's a great way to assess which students understand the skill and which students need more practice.
Answer keys for both sheets are included.