A Scavenger Hunt for students working on Combining Like Terms. The answers are at the top of each page. The problem at the bottom of the page does not match the answer on that same page. In this document the first answer matches the last problem. The rest are in order.
Hang the paper around your classroom. Students can work individually or in pairs simplifying the expressions. Then, they search for their answer. When hanging up the Scavenger Hunt, I recommend putting the papers out of their current order.
This activity gets students moving, which is a nice break for them. It also is a great way for students to talk about math. They engage each other in conversation about correct answers, order of operations, as well as simplifying expressions.