A vibrant, happy sun collides with a cloud that appears suprised, working to brighten his day in the Addition up to 20 Worksheet. This worksheet is made to help you encourage your pupils to work on their math swiftly and accurately to reach the reward at the end. The sheet features 10 addition problems on the left-hand side. Each correct answer that the student arrives at comes with a corresponding color. These colors can be found spread around the image on the right side of the page, allowing students to fill in the cartoon by coloring by number.