1. Algebraic expressions, direct and inverse proportion, angle sum of polygon, error in factorisation, percentage increase and decrease over multiple years 2. Angle properties in isosceles triangles and parallel lines, line equation classification by gradient and intercept, enlargement transformation, quadratic graph plotting 3. Bounds estimation, mean from grouped data, compound inequality solving, frequency polygon interpretation, evaluating comparative statistical claims 4. Solving exponential equations, integer solution to inequality, expanding binomials, recursive sequence generation, surface area of triangular prism 5. Recurring decimal digit identification, circle area to radius conversion, ratio distribution and difference constraint, collinearity and coordinate finding, stem-and-leaf diagram completion and interpretation, composite shape perimeter involving triangle and semicircle