This page is a fun way for students to practice Order of Operations. It is also 'self-checking'. If a student solves a problem, and the correct answer does not appear, they know they have made a mistake.
I use this in a few different ways. In class, students each recieve a worksheet (I also allow them to work in partners on occasion.) They cut out the puzzle, work the problems, and glue their completed product down on a piece of construction paper (It makes a square.)
I also use this for a file folder game. I print or write the instructions on the inside of the folder, and then make a few laminated sets of cards that students can grab if they have free time in class.