9 Mystery Pictures with 27 Color By Number Math Worksheets. Each worksheet includes 10 unique math problems. All pictures have a colored answer key. Directions: Solve the math problem, look at the color next to it, and then color in ALL of the squares that have that answer. Example:Compare Fractions and Percents. Which Is greater? Color By Answer. 1/2 or 10% Answer: 1/2 Please CLICK HERE to view other Math Mystery Picture products