Students practice solving expressions with the Order of Operations. This worksheet only uses positive numbers, but does include parenthesis. The students have an opportunity to self-check along the way because they can't move through the maze unless they find the correct answer.
I also have other fun mazes about unit rates, fractions, and multi-step equations:
Unit Rate Maze
Alien Fraction Maze
Multi-step Equation Maze
Unit Prices Maze: Which Product is a Better Buy?
And products involving Order of Operations:
FREE Order of Operations Quiz
Christmas Math Challenge: Integers and Order of Operations