Starter set contains 10 2-sided worksheets. Each worksheet features 6 sections: number sense and operations, measurement, data analysis/probability, geometry, patterns/functions/algebra, and problem solving to provide a variety of practice and review. These are great for keeping math skills sharp; intended for 2nd grade but make nice review practice for older students as well. This set is numbered 1-10 and reviews the following skills: basic addition, sequencing numbers, even/odd numbers, time