Paint by number.

Paint by number.
 

I'm full of questions tonite. My little sobrino just received a paint by number set where they have pictures, and each picture is divided up into different section. Each section is marked with a number that corresponds to a certain color of paint, allowing you to paint a picture without any artistic talent. Cool huh? Anyway, I was just wondering if there is an official way of saying "paint by number" in Spanish. Graciassss.

I don't think there is an established word
Options (all OK):
"Colorea según los números"
"Colorea con números" or "Colorea por números"
"Colorear según los/con/por números"

I would use the first one.
greetings :D

Ohhh lots of options... I guess I'll go with the one you would use. Thx.