The complete guide to Digital SAT Math
Everything you need to plan your preparation: how the section is built, what it tests, how the adaptive modules work, and how to pace yourself and use Desmos on test day.
The Math section at a glance
The Math section tests algebraic reasoning, problem solving with data, and geometry. It is taken in the Bluebook app in two timed modules.
Two question formats
Most questions are multiple choice. About a quarter are student-produced response: you type your own answer, so there are no options to check against.
Four unscored questions
Each module includes 2 pretest questions that do not count. You cannot tell which ones they are, so treat every question as scored.
Calculator on every question
Desmos is built into Bluebook, and an approved calculator of your own is also allowed. A reference sheet of formulas is available throughout.
Content domains and skills
College Board organises the Math section into four domains and 19 skills. Algebra and Advanced Math together make up about 70% of the test, so they deserve most of your study time.
Algebra
- Linear equations in one variable
- Linear equations in two variables
- Linear functions
- Systems of two linear equations in two variables
- Linear inequalities in one or two variables
Advanced Math
- Equivalent expressions
- Nonlinear equations in one variable and systems of equations in two variables
- Nonlinear functions: quadratic, exponential, polynomial, rational and radical
Problem-Solving and Data Analysis
- Ratios, rates, proportional relationships and units
- Percentages
- One-variable data: distributions, centre and spread
- Two-variable data: models and scatterplots
- Probability and conditional probability
- Inference from sample statistics and margin of error
- Evaluating statistical claims: observational studies and experiments
Geometry and Trigonometry
- Area and volume
- Lines, angles and triangles
- Right triangles and trigonometry
- Circles
Source: College Board, SAT Suite of Assessments, Math test specifications.
How the adaptive modules work
The Math section is adaptive by module, not by question. Your performance on Module 1 decides which version of Module 2 you receive.
A mix of easy, medium and hard questions. Everyone gets the same level of difficulty.
Opens the path to the highest scores.
Your maximum possible score is lower.
Calculator and Desmos strategy
Desmos can turn some algebra questions into a quick graph, but it is a tool for specific jobs, not a replacement for reasoning.
Systems and intersections
Graph both equations and read the intersection point instead of solving by elimination.
Quadratics
Graph the function and tap the vertex or the x-intercepts to read them directly.
Checking equivalent expressions
Graph the original and an answer choice: if the curves coincide, the expressions are equivalent.
Regression from a table
Enter the data in a table and fit a linear or exponential model when a question asks for the line or curve of best fit.
Simple one-step algebra
Solving 3x − 7 = 11 by hand is faster than typing it. Save Desmos for questions where it really saves time.
Unread graph windows
Zoom so the important features are visible, and check that the scale makes sense before trusting a reading.
Timing and pacing
Questions in each module roughly get harder as you go. Move faster through the early ones to bank time for the end, and keep a few minutes for review.
High-frequency concepts to master first
These ideas appear on almost every test. Being fast and accurate with them frees up time for the harder questions.
A 30-day study plan
About an hour a day, five or six days a week. Start with a diagnostic so you know where your points are.
Diagnose and build algebra
Take a full Bluebook practice test. Then work on linear equations, linear functions, systems and inequalities.
Advanced Math
Quadratics, exponentials, equivalent expressions and nonlinear functions. Practise reading each form for the information it shows.
Data and geometry
Percentages, ratios, statistics and probability, then area, volume, triangles, circles and trigonometry.
Full tests and review
Two timed full-length Bluebook tests. Review every mistake and redo the questions you missed a few days later.
Common mistakes and how to fix them
Frequently asked questions
Is the Digital SAT Math section easier than the paper SAT?
Not easier, but different. It is shorter, a calculator is allowed on every question, and most questions are more direct. Because it is adaptive, reaching the top scores still requires strong accuracy on harder questions.
Can I use a calculator on every question?
Yes. Desmos is built into Bluebook, and you may also bring an approved calculator of your own.
How many questions are there, and how many count?
There are 44 questions in two modules of 22. Four of them (two per module) are unscored pretest questions, so 40 count towards your score.
Is there a penalty for wrong answers?
No. Only correct answers count, so answer every question, even if you have to guess.
What is the score range?
The Math section is scored from 200 to 800. Together with Reading and Writing, the total SAT score ranges from 400 to 1600.
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