Digital SAT Format: Modules, Questions and Timing
7 min read · Updated
The Digital SAT is 98 questions long and takes 134 minutes of testing — two hours and fourteen minutes — with a 10-minute break in the middle. It has two sections, Reading and Writing and then Math, and each section is split into two modules. Every module has its own clock, and when a module's time runs out it closes whether you have finished or not.
The four modules
| Module | Questions | Time | Seconds per question |
|---|---|---|---|
| Reading and Writing — Module 1 | 27 | 32 min | ≈71 |
| Reading and Writing — Module 2 | 27 | 32 min | ≈71 |
| Break | — | 10 min | — |
| Math — Module 1 | 22 | 35 min | ≈95 |
| Math — Module 2 | 22 | 35 min | ≈95 |
| Total | 98 | 134 min | ≈82 |
That last column is the one worth remembering. You get a little over a minute per Reading and Writing question and about a minute and a half per Math question. Within a Math module the questions generally get harder toward the end, so that is where students most often run short of time.
How the adaptive part works
The Digital SAT is multistage adaptive. Module 1 of each section is a broad mix of easy, medium and hard questions. How well you do on it decides which version of Module 2 you get: a harder one or an easier one. The harder Module 2 is the only route to the top of the scale, so a strong Module 1 matters more than it looks.
What this means for you
Treat Module 1 as the most important 32 or 35 minutes of the test. Careless errors there cost more than the same errors later, because they can route you to the easier second module and cap your score.
What is in Reading and Writing
Every question has its own short passage — usually 25 to 150 words, sometimes a pair of passages, a set of notes or a table of data — and exactly one question about it. There are no long passages with ten questions attached. The questions fall into four content domains:
| Domain | Share | What it tests |
|---|---|---|
| Craft and Structure | ≈28% | Words in context, text structure and purpose, cross-text connections |
| Information and Ideas | ≈26% | Central ideas, details, inferences, textual and quantitative evidence |
| Standard English Conventions | ≈26% | Sentence boundaries, punctuation, agreement, verb forms |
| Expression of Ideas | ≈20% | Transitions and rhetorical synthesis from a student's notes |
What is in Math
About three quarters of the Math questions are multiple choice. The rest are student-produced responses, where you type your own answer — there are no options to check against, so these are where careful arithmetic matters most.
| Domain | Share | What it tests |
|---|---|---|
| Algebra | ≈35% | Linear equations, inequalities, functions and systems |
| Advanced Math | ≈35% | Quadratic, exponential, polynomial, rational and radical functions |
| Problem-Solving and Data Analysis | ≈15% | Ratios, percentages, probability, statistics, data displays |
| Geometry and Trigonometry | ≈15% | Area and volume, angles, triangles, circles, right-triangle trig |
The tools on screen
- A built-in graphing calculator, available for every Math question. You may also bring an approved calculator of your own.
- A reference sheet of area and volume formulas and the special right triangles, available throughout Math.
- Mark for Review, to flag a question and come back to it before the module ends.
- An answer eliminator, to cross out options you have ruled out.
- A countdown clock you can hide — it reappears automatically in the last five minutes.
How it is scored
Each section is scored from 200 to 800, and the two add up to a total from 400 to 1600. There is no penalty for wrong answers, so you should never leave a question blank. A small number of questions in each module are unscored pretest items, but they look exactly like the rest, so treat every question as if it counts.
Practice the shape, not just the content
Knowing the material is half the test. The other half is pacing across four separate clocks and using the on-screen tools without thinking about them. Full-length timed practice is the only way to rehearse that.