Does anyone have a simple Framework/Diagramming approach to Math-type questions that you can rely on? This is for questions like those found in PT 31, Sect 2, Ques 15 (31, 2, 15) or those found at these locations as well: 27, 4, 14; 21, 2, 10; 34, 3, 21? Thanks for any tips/pointers!