Skill mapping
Every formula here links to the official SAT Math skill that tests it.
Reference
Every relationship the Digital SAT expects, in 25 lines — split into the ones Bluebook shows you on test day and the ones it does not. Each links to the official skill where it is actually tested.
Given to you on test day
On screenThis is the reference sheet inside Bluebook. Knowing it is on screen is worth more than memorizing it — what costs points is not recognizing which one a word problem is asking for.
The other half
None of these appear on the reference sheet, and between them they cover most of the Math section. This is the half of the page worth studying.
SourceThe given list mirrors the reference information shown inside Bluebook on the Digital SAT, checked on 2026-08-03. The second list is Kaoshen's, drawn from the relationships the official skill descriptions assume you already have.
Why a sheet is not enough
Nobody loses points on the SAT because they cannot write the quadratic formula. They lose points because a word problem describes a relationship and they do not notice which formula it is describing.
So the useful way to read this page is backwards: pick the row that does not feel automatic, open the skill it links to, and answer questions until the shape of the prompt is what triggers the recall.
What memorizing alone costs you
How to use it
Read down the second list and stop at the first line you had to think about.
Answer before opening any hint, so the miss is a real one.
Recall, setup, units, or interpretation. Only the first one is a formula problem.
FAQ
Yes. The Digital SAT shows reference information inside Bluebook — the circle, triangle, and volume formulas listed in the first group on this page. It stops there, which is why the second group matters more.
Slope, slope-intercept and vertex form, the quadratic formula, the equation of a circle, the distance formula, exponential growth and decay, percent change, mean, probability, and the trigonometric ratios. Between them they cover most of the Math section.
Yes. Use your browser's print command or save as PDF. It is typeset text rather than an image, so it stays sharp on paper and readable by a screen reader.
It is a study sheet. During the test you have only the official reference information; the useful part of this page is knowing which question type each relationship belongs to.
Full practice
A reference tells you the relationship. Only a question tells you whether you can spot when it applies.
Every formula here links to the official SAT Math skill that tests it.
Practice forces you to recognize the relationship before you can use it.
Wrong answers separate a recall problem from a setup, unit, or interpretation problem.
One stable URL per question, so review goes back to the same place.
The skill returns after three days and again after fourteen.
Full practice
Kaoshen turns this reference into free Math practice: skill pages, canonical questions, wrong-option feedback, and a retest that proves the trap is gone.