So, after some pondering and checking out what everyone had to say, I decided to work with what @cheesemonkeysf suggested. Thanks too to @druinok who helped me hash out my plan.
On Tuesday when we return, I will hand back their quizzes. Since I had 2 of the 3 classes with me at home, I have already gone through those classes. When I get to school Tuesday, I'll go through the third class (which is, of course, my first period class). I have decided on "My Favorite No" for each of the problems on both versions of the test with the exception of the factoring problems.
Next week on Monday then, we'll start over on factoring polynomials. First, we'll do GCF factoring again. Tuesday, I think we'll do some diamond puzzles before doing x^2 + bx + c factoring Wednesday and go from there. If anyone has some suggestions for practicing factoring in class, I'd sure appreciate them. I have some thoughts, but nothing fully concrete yet.
Thanks again for everyone's commiserating, well-wishes, and most importantly, suggestions. Hopefully there will be a time when I can help you all out.