Math study guides
Each guide covers one topic on a single page: the key ideas, definitions, the formulas worth memorizing, worked examples, the mistakes students make most, and short practice questions with answers. Every guide prints cleanly.
Limits describe what a function approaches near an input, even when the function is undefined there. They are the foundation of continuity, derivatives and integrals.
A quadratic equation has the form with . It has at most two solutions, and four standard methods find them.
Descriptive statistics summarize a data set by its center, spread and shape, and flag unusual values.
How to use a study guide
Read the overview and key concepts first, then cover the worked examples and try to reproduce each step yourself. The common-mistakes list is worth rereading the night before a test: most lost marks come from a small set of repeated slips.
Finish with the practice questions. The answers are hidden until you open them, so you can check yourself honestly. When a question goes wrong, the linked calculators and the step-by-step solver show the full working for that type of problem.
Need just the formulas? See the printable cheat sheets, or practise with worked practice problems.