Make learning addition fun and interactive with these Addition & Missing Numbers to 20 worksheets! This resource is designed to help young learners develop strong number sense, addition skills, and problem-solving abilities. Students will practice finding the missing number in addition equations up to 20, building confidence and accuracy in early math. These worksheets are perfect for Kindergarten and Grade 1 classrooms, math centers, homework, morning work, or independent practice. What’s Incl