This supplemental practice packet is full of activities to help students master the 4.oa.1 standard. These activities will help to supplement any core math program and provide students with the additional practice that they need. Perfect for learning centers of small groups. Use for spiral review or send home for extra practice. Includes a Common Core Quiz. Perfect for test prep or summer review. Designed for grade 4 but could be use with grade 3 or grade 5 students as well.