It can be difficult for children to remain focused on a task at school, especially something that demands the attention as much as mathematics do. Help give your students motivation to complete their math assignments with the Addition and Subtraction up to 30 Worksheet! This fun worksheet features 10 addition and subtraction problems on the left side of the page. Each problem's correct answer comes with a color attached. With the right answer in mind, students can find the number on the image and then color it in with the associated number for a fun reward after each lesson.