Digital SAT Math (College Board): complete guide to the modules, the four content domains, Desmos and the adaptive test

The Digital SAT Math section is one of two sections on College Board's Digital SAT (the other is Reading and Writing). It is taken on the Bluebook app, it is multistage adaptive, and it allows a calculator, including a built-in Desmos graphing calculator, on every question. This page is the index: below is a map of the four content domains, how the modules and adaptive scoring work, the question formats, and how to study each domain for a high score.

This library covers the Digital SAT Math section in full: a Bluebook and test-strategy module that explains the format, the adaptive design, the calculator and the answer-entry rules, plus one module for each of College Board's four content domains.

The section at a glance

The Math section has 44 questions in 70 minutes, split into two modules of 22 questions in 35 minutes each.

• Module 1 is the same for everyone: a mix of easy, medium and hard questions at an overall medium difficulty.
• Module 2 is chosen by your Module 1 performance: do well and you get the harder second module (which can earn a higher score); otherwise you get the easier form.

Within each module the questions run in rough order of difficulty, easier first and harder later, so you can bank the early points before the demanding ones. A calculator is allowed throughout, there is no no-calculator part, and a reference sheet is available on every question.

The four content domains

College Board organizes Math into four domains, each contributing a roughly fixed share of the section.

Algebra (about 35%)

Linear relationships: linear equations in one and two variables, linear functions, systems of two linear equations, and linear inequalities. This is the largest single skill cluster and the backbone of a high score.

Advanced Math (about 35%)

Nonlinear algebra: rewriting equivalent expressions, solving nonlinear equations (quadratic, polynomial, rational, radical, exponential), systems with a nonlinear equation, and analyzing nonlinear functions and their graphs.

Problem-Solving and Data Analysis (about 15%)

Quantitative reasoning in context: ratios, rates and proportional relationships, percentages, one-variable statistics (center, spread, distributions), two-variable data (scatterplots and models), probability and conditional probability, inference and margin of error, and evaluating statistical claims.

Geometry and Trigonometry (about 15%)

Measurement and shape: area and volume, lines, angles and triangles, right-triangle trigonometry (sine, cosine, tangent and the special right triangles), and circles (including circle equations in the coordinate plane).

Question formats

About three-quarters of Math questions are multiple choice with exactly four answer choices. The remaining quarter are student-produced response (SPR) questions: you type the answer instead of selecting it. SPR answers may be positive or negative and may be integers, decimals or fractions, but you cannot enter a mixed number or the symbol pi. The field accepts up to five characters for a positive answer and six for a negative answer.

How to study Digital SAT Math

The Digital SAT rewards fluent algebra, fast pattern recognition, and disciplined use of the calculator.

1. Front-load Algebra and Advanced Math. Together they are about 70% of the section. Make linear equations, functions, systems and the nonlinear toolkit (quadratics, exponentials, equivalent expressions) automatic.
2. Build the data and geometry domains next. Drill ratios, percentages and statistics, then area, angles, right-triangle trig and circles. These are smaller but high-yield because the questions are formulaic.
3. Practice in Bluebook. Use the official app so the Desmos calculator and the SPR entry field feel routine on test day. Many algebra and function questions collapse to a graph-and-read in Desmos.
4. Learn the reference sheet. You do not need to memorize the formulas, but you must reach for the right one in seconds.
5. Pace yourself. Roughly 95 seconds per question keeps you on time; bank the early, easier questions and protect time for the harder back half of each module.

The domains, topic by topic

Each topic has a focused answer page with worked Digital SAT style questions and cross-links, plus an overview guide and quiz. Browse the full set at /sat/mathematics/syllabus.

• Bluebook and test strategy: the format and the two modules, the multistage adaptive design, using the Desmos graphing calculator, student-produced response questions, the Math reference sheet.
• Algebra: linear equations in one variable, linear functions, linear equations in two variables, systems of two linear equations, linear inequalities.
• Advanced Math: equivalent expressions, nonlinear equations in one variable, quadratic functions and their graphs, nonlinear functions, systems of nonlinear equations.
• Problem-Solving and Data Analysis: ratios, rates and proportional relationships, percentages, one-variable data and statistics, two-variable data and scatterplots, probability and conditional probability.
• Geometry and Trigonometry: area and volume, lines, angles and triangles, right triangles and trigonometry, circles, coordinate geometry and circle equations.

For the official test specifications

College Board publishes the full Digital SAT specifications, the Math content domains and skills, and free official practice in the Bluebook app and on the SAT Suite site at satsuite.collegeboard.org. Always study from the current official specifications and College Board's own practice tests, because the section structure, the adaptive design and the question style are College-Board-specific.