All 28 Digital SAT Maths topics, free. Each one opens with a worked
example, then asks you to type your own answers — no multiple choice to guess from.
Clear a topic at easy, medium and hard to earn its three stars, and the next topic
unlocks. Every question rolls fresh numbers, so nothing can be memorised.
Algebra
Lines, systems, inequalities — ~35% of the test
- Linear equations · one variable
- Linear equations · two variables
- Systems of linear equations
- Linear inequalities
- Slope & intercept in context
- Rearranging formulas
- Linear word problems
Advanced Math
Quadratics, polynomials, functions — ~35% of the test
- Quadratic equations
- Quadratic graphs
- Polynomials
- Exponents & radicals
- Exponential functions
- Function notation
- Nonlinear systems
Problem-Solving & Data
Ratios, percentages, statistics — ~15% of the test
- Ratios, rates & proportions
- Percentages
- Mean, median & mode
- Spread & standard deviation
- Two-way tables
- Scatterplots & models
- Sampling & inference
Geometry & Trigonometry
Angles, circles, trig — ~15% of the test
- Lines & angles
- Triangles
- Pythagoras & distance
- Circles
- Right-triangle trig
- Volume & surface area
- Coordinate geometry