Free SAT Prep · Math
Math on the Digital SAT
The Math section is two modules of 22 questions, and the built-in Desmos calculator changes how you should approach a lot of them. Knowing which skill a question is testing, and whether to reach for Desmos, is most of the battle.
These guides group the 18 skills into the four official domains. Start with the domain costing you the most points, or work top to bottom. Each skill has its own page with the strategies that work, practice questions with worked solutions, and the Desmos move when there is one.
How the Math section is built
- Two modules of 22 questions in 35 minutes each, so 44 questions and 70 minutes in total.
- The section is adaptive. Module 1 mixes easy, medium, and hard questions, and how you do on it routes you into an easier or harder Module 2. That second module sets the score range you can reach.
- The four domains are not grouped. They are mixed through each module and ordered easiest to hardest overall, so any domain can appear anywhere: Algebra, Advanced Math, Problem-Solving and Data Analysis, and Geometry and Trigonometry.
Algebra
≈35% · 13–15 questionsLinear equations, systems, functions, and inequalities in one and two variables. The foundation of the Digital SAT Math section.
- Linear Equations in One Variable
- Linear Equations in Two Variables
- Linear Functions
- Linear Inequalities in One or Two Variables
Advanced Math
≈35% · 13–15 questionsNonlinear equations and systems, quadratic and other nonlinear functions, and equivalent expressions. The algebra of curves and higher-order relationships.
- Equivalent Expressions
- Nonlinear Equations in One Variable and Systems of Equations
- Nonlinear Functions
Problem-Solving and Data Analysis
≈15% · 5–7 questionsRatios, rates, proportions, percentages, probability, and interpreting one- and two-variable data. Quantitative reasoning in real-world and statistical contexts.
- Ratios, Rates, Proportional Relationships, and Units
- Percentages
- One-Variable Data
- Two-Variable Data
- Probability and Conditional Probability
- Inference from Sample Statistics and Margin of Error
- Evaluating Statistical Claims
Geometry and Trigonometry
≈15% · 5–7 questionsArea and volume, lines and angles, triangles, right-triangle trigonometry, and circles. The standard geometric and trig relationships tested on the SAT.
- Area and Volume
- Lines, Angles, and Triangles
- Right Triangles and Trigonometry
- Circles
Solve it with Desmos
The calculator built into the Math section
Used well, the Digital SAT's built-in Desmos calculator turns a lot of Math questions into a couple of clicks. These are the 14 moves that apply across Math, each with its own lesson.
- 1Solve Any Equation by Graphing
- 2Graph a System of Two Linear Equations
- 3Read a Line's Slope and Intercepts from Its Graph
- 4Read a Parabola's Vertex, Roots, and Intercepts
- 5Find a Circle's Center and Radius from Its Equation
- 6Check if Two Expressions Are Equivalent
- 7Find Mean, Median, or Standard Deviation from a List
- 8Build a Table to Test Several x-values at Once
- 9Fit a Line or Curve to Data (Regression)
- 10Find a Residual from a Line of Best Fit
- 11Graph a System of Inequalities to Test a Point
- 12Use a Slider to Test an Unknown Constant
- 13Find a Constant for the Number of Solutions
- 15Solve Trig Equations in Degree Mode
Keep missing Math questions?
SAT Prep Quest tracks your level on every Math skill, then feeds you 5-minute drills right at your challenge zone until it is fixed.
Drill your weak spots freeSAT is a registered trademark of the College Board, which was not involved in producing, and does not endorse, this product. Score estimates are Learner Labs projections, not official College Board scores.