Digital SAT
The test reports your result by skill. This site is organised the same way, so a weak line on a score report leads to exactly one page.
How the score report maps here
Digital SAT results name the areas you lost points in rather than listing the questions you missed. Math is reported across four domains — Algebra, Advanced Math, Problem-Solving & Data Analysis, and Geometry & Trigonometry — and Reading & Writing across four more. Each named skill inside those domains gets one page here, under the same name, so there is no translation step between the report and the practice.
How to use it
Open the skill you lost points on and read the On the test table first: it tells you what the question looks like and which words give it away. Recognition is the part a clock takes away, so that section matters more than it looks.
Then work the practice without checking anything. When you get one wrong, read the explanation for the answer you chose, not just the right one — every wrong choice here was built from a specific mistake, and the explanation names it. That is the part that stops the mistake happening twice.
Sections
Algebra
Linear equations, inequalities, systems and functions — the largest scored domain on Digital SAT Math.
6 skills written so far.
Advanced Math
Quadratics, exponentials, equivalent expressions and the function notation that ties them together.
5 skills written so far.
Problem-Solving & Data Analysis
Ratios, rates, percentages and reading quantitative claims out of tables and graphs.
2 skills written so far.
Geometry & Trigonometry
Area, volume, angles, triangles, circles and right-triangle trigonometry.
In progress.
Reading & Writing
In progress. Math ships first so that each domain lands complete rather than scattered across half-finished areas — 13 skills and 156 explained questions so far.