Bring holiday cheer to your math centers with this 30-page Santa’s Missing Number Challenge! Perfect for 1st and 2nd grade, these Christmas-themed worksheets help students strengthen their mental math, problem-solving, and number sense skills using addition and subtraction and beyond. Each page features: 🎅 Fun and festive Santa design ➕➖ Equations with missing numbers (both beginning and middle of the equation) 🧠 Increasing difficulty to support differentiation ✏️ No prep – just print