This is a package that includes interactive activities, games and assessments to strengthen and measure students’ understanding of finding a missing variable. The package includes 3 different activities along with assessments. The activities include a spinner game and two board games to identify the missing variable in a number sentence that are perfect for centers or partner work. The activities and assessments include all four operations. The preview includes screenshots of a large portion of the packet. My students have truly enjoyed the activities in math centers. I know that your students will both enjoy and benefit from this packet! Please feel free to contact me if you have any questions.