Trace and find the number 13. 1. Tap the button to start. 2. Tap the button, and pick a color. Then, trace the white 13 in the center of the page at least 3 times. Say the name of the number each time you rainbow write it. 3. Circle any 13's you see around the middle number. Say the number each time you find its match. 4. Tap to submit your work.