9 Mystery Pictures with 27 Color By Number Math Worksheets. Each worksheet includes 10 unique 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. Table Of Contents: Color by Numbers in Spanish. Numbers 1 - 10. (9 Worksheets + Answer Key) Color by Numbers in Spanish. Numbers 1 - 20. (9 Worksheets + Answer Key) Color by Numbers in Spanish. Numbers 1 - 30. (9 Worksheets + A