My math study guide and practice tests helped me pass my exam. From what I see on these review sites, it's always the test taker(s) who would rather complain, look for every flaw in test preparation materials vs "just study, pass and move on with their life and career."
Face it. It's easier to waste time on review sites, unload your frustrations of taking a difficult/stressful and blame other people for your shortcomings than do the hard work and take responsibility for preparing and succeeding on the test.
Yes, my calculus and advanced mathematics materials from teachingsolutions.org has plus, minus, addition, subtraction. I doubt Teaching Solutions would be in business for over 20 years if they had mathematics guides without minus or plus signs. People are willing to lie in order to hurt sincere educators who are helping others enter the teaching profession.
Miraculously, I got the free bonus gifts valued at over $100. I wasn't sure where in my account I could locate them. All I did was contact client support and they told me where it was and they also followed up and send me a link to download it easily.
I'm not a good test taker, but this improved my test taking skills as well as helped me learn the tested material.