Here is my INB pages for solving quadratics by square roots, modified from Sarah Hagan.
Here's the file for the plus minus signs:
For extra practice, I made my own row game for practice. If you're not familiar with it, one partner does the left side and the other partner does the right side. They should get the same answer for each problem, even though the problems are different. If they disagree, they have to check each other's work for mistakes.
Here's the file.