These worksheets are a great way to introduce students to solving for missing terms. The worksheets include adding, subtracting, and a combination of both. I use these in tutorials with lower level students. Once they can successfully complete some of these worksheets, we add a variable in the circle and practice showing work to solve an equation. This allows me to make these worksheets a little harder as the student progresses and/or for different levels of kids within your classroom. Enjoy!