1. Number and Calculation: Irrational numbers and standard form; indices and their applications; substituting into expressions; expanding and simplifying algebraic expressions. 2. Decimals, Percentages, and Rounding: Multiplying and dividing decimals; understanding compound percentages; estimating upper and lower bounds in calculations. 3. Shapes and Measurements: Circumference and area of a circle; areas of composite shapes; 3D measurements and surface areas; transformations, including enlargements and symmetry.