Free practice
SAT Math
Free Digital SAT Math practice, organized by skill. Every topic below has original sample questions with full explanations, plus a much larger bank once you sign up.
Linear Equations in One Variable
Solve for a single unknown in equations like 3x + 7 = 22. This is one of the most frequently tested skills on the Digital SAT Math section.
Linear Equations in Two Variables
Work with equations of the form Ax + By = C, including finding intercepts and interpreting graphs of lines.
Linear Functions
Interpret and apply linear functions in real-world contexts, from flat-fee-plus-rate word problems to arithmetic sequences.
Linear Inequalities
Solve one-variable inequalities and identify the largest or smallest integer values that satisfy a given constraint.
Systems of Linear Equations
Solve systems of two linear equations using elimination or substitution, and reason about when systems have one, none, or infinite solutions.
Equivalent Expressions
Expand, factor, and simplify algebraic and exponential expressions to identify equivalent forms.
Nonlinear Equations and Systems
Solve quadratic and absolute value equations, including factoring and reasoning about multiple solutions.
Nonlinear Functions
Evaluate quadratic and exponential functions, and model real-world growth and decay scenarios.
Ratios, Rates, Proportions, and Units
Solve proportional reasoning problems, from recipe ratios to unit conversions and constant-speed rate problems.
Percentages
Work through single- and multi-step percentage problems, including sequential discounts and markups.
One-Variable Data
Calculate and interpret mean, median, and other measures of center and spread for a single data set.
Two-Variable Data
Interpret linear models fit to two-variable data and use them to make predictions.
Probability
Calculate the probability of an event given counts or proportions within a sample space.
Sample Statistics and Margin of Error
Interpret what a poll's margin of error actually tells you about sampling variability.
Evaluating Statistical Claims
Distinguish correlation from causation and reason about limitations of observational studies.
Right Triangles and Trigonometry
Apply the Pythagorean theorem and basic trigonometric ratios to solve for unknown side lengths.
Circles
Work with circumference, area, and radius relationships, including problems expressed in terms of π.
Area and Volume
Calculate the area of two-dimensional shapes and the volume of three-dimensional solids.
Lines, Angles, and Triangles
Apply angle relationships and triangle properties, including similarity, to solve for unknown measures.