Give your Kindergarten, 1st Grade, and 2nd Grade students the perfect visual tool to master both addition and subtraction within 20 using number lines! This Christmas-themed worksheet set is designed to build fluency, confidence, and a strong understanding of number line strategies—ideal for math intervention, centers, homework, or morning work. Grade Levels: Kindergarten, 1st Grade, 2nd Grade Subject: Math – Addition & Subtraction on a Number Line 🎯 Learning Objectives Students will pr