Are you looking for engaging and easy exercises to develop students' addition and subtraction skills? These worksheets, specifically designed for Special Education (Sp Ed) students, are the perfect solution to strengthen their math skills. The activity consists of 50 pages filled with various exercises on addition and subtraction within 20, including different types such as: 1. Adding numbers with 0, 1, 2, 3, 4, or 5 – for example: 15 + 2 =, 17 + 1 =, where the results do not exceed 20. 2.