Percentage change, profit-loss, discount applications.
Direct/inverse proportion, partnership splits.
Mean, weighted average, shifts on adding/removing values.
Work rates, pipes & cisterns, efficiency.
Divisibility, HCF/LCM, remainders, factors.
Areas and perimeters of plane figures.
BODMAS, surds, approximations.
Identities, linear/quadratic equations.
Cost/selling price, margins, successive discounts.
SI/CI, compounding periods, growth.
Relative speed, trains, boats & streams.
Mixing ratios, replacement problems.
Triangles, circles, lines and angles.
Ratios, identities, heights and distances.