A review on PEMDAS rules (order of operations) is needed at the beginning of an Algebra course. This activity will add to students' knowledge about turning 16 years old.
You can use this activity both as classwork or homework. If you want to differentiate you can ask students to complete at least 3 problems on each side.
If you want to encourage some discussion you can ask students to turn & talk or write about one thing they learned from the activity, or one thing that they do well on or want to do better by the time they turn 16 years old.