Practice number recognition and distinguishing between odd and even numbers with this fun 100th day worksheet. The worksheet includes numbers 1-100, but in random order, and requires students to identify odd and even numbers, and to use the color key to color the odd numbers blue and the even numbers red. To color the numbers you can use Do-A-Dot markers, crayons, colored pencils, washable markers, or any other kind of coloring utensil.