The shape of the test
The digital SAT has two sections. Reading and Writing runs first, then Math. Each section is broken into two modules, so you sit four timed blocks in total. The whole thing is 98 questions and 2 hours and 14 minutes of testing time, plus a break and the check-in before you start.
Reading and Writing is 54 questions delivered as two 32 minute modules of 27 questions each. Math is 44 questions delivered as two 35 minute modules of 22 questions each. That works out to about 71 seconds per Reading and Writing question and about 95 seconds per Math question, if you spread the time evenly.
You take it on a laptop or tablet using College Board's testing app, Bluebook. The app runs the timer, holds your answers, and gives you tools like the annotator, the answer eliminator, and a built in Desmos graphing calculator on the Math section.
The graph of the linear function f is shown in the xy-plane. What is the y-intercept of the graph of y = f(x)?
What each section asks for
Reading and Writing questions are one short passage each, usually 25 to 150 words, followed by a single question. You never get a long passage with six questions hanging off it. The questions are sorted so that all the reading comprehension items come first and all the grammar items come last, roughly easiest to hardest inside each group.
Math is about 75 percent multiple choice and about 25 percent student produced response, which means you type your own answer instead of picking one. Roughly a third of Math questions are wrapped in a real world context, and the rest are pure algebra, functions, geometry, or data.
The digital SAT is adaptive at the module level, not question by question.
Adaptive routing between modules
The digital SAT is adaptive at the module level, not question by question. You take Module 1, the app scores it, and then it gives you either the easier or the harder Module 2. This happens separately for Reading and Writing and for Math, so you can route up on one section and down on the other.
The practical effect is that Module 1 carries more weight than its question count suggests. The harder Module 2 is what opens the top of the score range. If you route into the easier one, there is a ceiling on what the section can be scored at, even if you get everything right.
Pretest questions
Two questions in every module are pretest questions. They do not count toward your score. College Board uses them to try out new items on real test takers before those items go live. With four modules, that is 8 unscored questions out of the 98, leaving 90 that count.
You cannot tell which ones they are, and they are not flagged in the app. So treat every question as if it counts, because from your side it does.
Scores
Each section is scored from 200 to 800 and the two add up to a total from 400 to 1600. College Board equates every form so that a score means the same thing across test dates, which is also why it does not publish a fixed raw to scaled conversion table.
Any raw score chart you find online, including the one behind our score calculator, is an estimate built from reported data points rather than an official table.