1. Algebra: rearranging formulas, nth term of sequences, solving linear equations, simplifying expressions, finding unknowns, evaluating with ratios and powers. 2. Geometry: vectors and transformations, midpoint of coordinates, using surface area and volume to compare shapes, bearings, triangle and prism volume relationships, area factorisation. 3. Probability and statistics: Venn diagram classification, fair sampling methods, compound probability, comparing probabilities between boxes, probability from a ratio setup. 4. Data and graphs: time-series trend interpretation, function machines, linear graphs, compound bar chart correction, coordinates classification relative to a line. 5. Number and measurement: percentage decrease, ratio simplification, perimeter-circumference conversion, 3 significant figures rounding, cube and cuboid volume and surface area. 6. Reasoning and logic: evaluating fair samples, bias in data collection, interpreting set membership, identifying incorrect assumptions in probability or statistics.