I'm looking to supplement my studying (reviewing each and every Manhattan GRE Subject Guide) with practice "sections". I am particularly looking to practice different questions types (particularly math) so as to test my cumulative knowledge (so closest to the actual mix of test questions). I find that when I do questions knowing what "section" they're from I'm more "focused" on the formulas I know for that section and am not testing how I adapt to different problems.
Does anyone have any suggestions for how to practice this? I do not want to use the Manhattan GRE practice tests as I want to save those for when I'm doing full length practice tests. I'm looking more for sections to supplement my current practice (so A LOT of sections).