Key formulas, rules, and results for CSEC Mathematics, organised by topic.

Direct and inverse variation, translating word problems into algebra, and proving identities.

Symbolic representation, operations on expressions, substitution, and binary operations.

Common factor, grouping, difference of two squares, and trinomial factorisation.

Simplifying and operating on algebraic fractions, plus the rules for working with powers.

Solving linear inequalities and rearranging formulae to make a different variable the subject.

Solving linear equations in one variable and pairs of simultaneous linear equations.

Factorising, completing the square, using the formula, and sketching parabolas.

Finding and evaluating composite functions, and how to find and verify an inverse.

Standard form, rounding to decimal places and significant figures, and unit conversion.