This is a terrific 22-question circuit written by my colleague Jenny Simmons. She wrote it for the students at her high school who need practice with their pre-algebra skills before taking standardized tests.
Like all of the circuits, the answers lead from one question to the next. There is no answer key provided since the answers are part of the circuit. All the teacher needs to do is to work the answer key ahead of the students!
If you get stuck, please email me at firstname.lastname@example.org