Before you begin the activity, print all of the section problems in one color and all of the operation signs in another color and tape them to the wall of the classroom in the order they are given.
Divide the students into six groups and number each group 1 to 6. Have the students who are in group 1, take their paper and pencil to the card labeled "Section 1". Each student will write the problem down exactly as shown and then will go back to their desk and work the problem using PEMDAS (Please Excuse My Dear Aunt Sally) tools. Send group 2 students to "Section 2" and so on.
You will need to walk around the room and monitor the students as they are working. Once the students have their answer, tell them to check their answer with the other students in the group. When they agree upon an answer, have students put their pencils down so that you will know they are finished.
Now you are going to go to the board (or whatever you use) and ask group 1 for their final answer. Write down the answer they give you. Ask the class to refer to the problem hanging on the wall and ask them what is the operation sign that you should write down. Continue with this process until you have written down and answer from each of the six sections and the operation symbols that go between them.
As a class, work the problem. If the answer is incorrect, send EVERYBODY back to their problem and have them rewrite it and come back to the desk to rework the problem. The students need to check their answers with each other again. Ask if any group wants to change their answer. If there is a change, rewrite the problem and work it as a class again. If the answer is still incorrect, pick three groups to go back and rework the problems again. (Make sure the three groups include the group(s) that still do not have the correct answer). Do the problem again as a class and hopefully it will be correct this time.
By the way, the correct answer is 0!