This worksheet is designed to help children understand the relationship between addition and subtraction. It features nine different fact families for students to analyze and provides spaces where they can demonstrate how each number in the family can be written as an addition and subtraction statement. This worksheet is specifically designed for first graders and is an excellent tool for practicing addition and subtraction within 20 while also reinforcing their understanding of fact families. With this exercise, students can gain a deeper understanding of fundamental math concepts and build a solid foundation for future learning.