Math games for Grade 9. Practice that sticks.
Grade 9 math practice: 88 skills across algebra & functions, geometry & measurement, statistics & probability, with 1009 free practice questions — every one served inside our head-to-head math games, from absolute value equations (act/sat) to unit conversion word problems (act).
Algebra & functions
Absolute value equations (ACT/SAT)Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.10 QsDrill it →Combining like square roots (ACT)Rewrite expressions involving radicals and rational exponents using the properties of exponents.10 QsDrill it →Common factor factoring (SAT)Use the structure of an expression to identify ways to rewrite it.10 QsDrill it →Common factor group size (ACT)Practice common factor group size (act) with 10 questions.10 QsDrill it →Compound inequality situationsRepresent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.10 QsDrill it →Difference of squares factoringUse the structure of an expression to identify ways to rewrite it.10 QsDrill it →Discriminant analysisSolve quadratic equations in one variable.15 QsDrill it →The discriminant and quadratic formulaSolve quadratic equations in one variable.20 QsDrill it →Equivalent rational expressions (SAT)Use the structure of an expression to identify ways to rewrite it.10 QsDrill it →Evaluating functionsUse function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.10 QsDrill it →Evaluating functions at a valueUse function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.20 QsDrill it →Evaluating functions from percent changeUse function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.10 QsDrill it →Evaluating functions in contextUse function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.10 QsDrill it →Writing exponential equations from context (SAT)Practice writing exponential equations from context (sat) with 10 questions.10 QsDrill it →Exponential functions in context (SAT)Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs.10 QsDrill it →Factoring quadratic expressions (ACT)Practice factoring quadratic expressions (act) with 10 questions.10 QsDrill it →Factorable polynomial zeros (ACT)Practice factorable polynomial zeros (act) with 10 questions.10 QsDrill it →Factored polynomial x-intercepts (SAT)Graph functions expressed symbolically and show key features of the graph.10 QsDrill it →Factoring patternsUse the structure of an expression to identify ways to rewrite it.15 QsDrill it →Factoring quadraticsUse the structure of an expression to identify ways to rewrite it.30 QsDrill it →Fraction bounds extreme value (ACT)Practice fraction bounds extreme value (act) with 10 questions.10 QsDrill it →Function table composition (ACT)Practice function table composition (act) with 10 questions.10 QsDrill it →Geometric sequence equationsWrite arithmetic and geometric sequences both recursively and with an explicit formula, and use them to model situations.10 QsDrill it →Interpreting exponential parametersPractice interpreting exponential parameters with 10 questions.10 QsDrill it →Interpreting function values in contextUse function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.10 QsDrill it →LCM word problems (ACT)Practice lcm word problems (act) with 10 questions.10 QsDrill it →Linear equation expressions (SAT/PSAT 8/9/10)Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.20 QsDrill it →Linear equation formsCreate equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.15 QsDrill it →Linear equation from two points (SAT)Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.10 QsDrill it →Linear functions from tables (ACT/SAT)Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs.10 QsDrill it →Linear graph translationsIdentify the effect on the graph of replacing f(x) by f(x) + k, k·f(x), f(kx), and f(x + k) for specific values of k.10 QsDrill it →Linear inequalitiesSolve linear equations and inequalities in one variable, including equations with coefficients represented by letters.18 QsDrill it →Linear inequality situations (ACT/SAT/PSAT 8/9/10)Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.10 QsDrill it →Linear inequality system solutionsGraph the solutions to a linear inequality in two variables as a half-plane, and graph the solution set to a system of linear inequalities as the intersection of half-planes.10 QsDrill it →Linear-quadratic graph intersections (ACT)Practice linear-quadratic graph intersections (act) with 10 questions.10 QsDrill it →Linear raise total earningsCreate equations and inequalities in one variable and use them to solve problems.10 QsDrill it →Linear rule from a function table (ACT)Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs.10 QsDrill it →Linear system expressions (ACT/SAT/PSAT 8/9/10)Solve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Linear system word problems (ACT/SAT)Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.10 QsDrill it →Linear systems by substitution (SAT)Solve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Writing systems from contextRepresent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.10 QsDrill it →Solving two-variable linear equations given one valueSolve linear equations and inequalities in one variable, including equations with coefficients represented by letters.10 QsDrill it →Literal equations (SAT)Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.10 QsDrill it →Literal quadratic equations (ACT)Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.10 QsDrill it →Monomial expression multiplication (SAT)Understand that polynomials form a system analogous to the integers: they are closed under addition, subtraction, and multiplication; add, subtract, and multiply polynomials.20 QsDrill it →Piecewise function composition (ACT)Practice piecewise function composition (act) with 10 questions.10 QsDrill it →Polynomial combining like terms (ACT/SAT)Understand that polynomials form a system analogous to the integers: they are closed under addition, subtraction, and multiplication; add, subtract, and multiply polynomials.10 QsDrill it →Polynomial expression multiplication (SAT)Understand that polynomials form a system analogous to the integers: they are closed under addition, subtraction, and multiplication; add, subtract, and multiply polynomials.10 QsDrill it →Product systems that compare numbersSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Quadratic distinct real solutions countSolve quadratic equations in one variable.10 QsDrill it →Quadratic expression values from equationsPractice quadratic expression values from equations with 10 questions.10 QsDrill it →Quadratic function word problems (ACT)Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.10 QsDrill it →Quadratic minimum from vertex formGraph functions expressed symbolically and show key features of the graph.10 QsDrill it →Quadratic minimum x-valueGraph functions expressed symbolically and show key features of the graph.10 QsDrill it →Quadratic missing coefficient from roots (ACT)Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.10 QsDrill it →Radical to exponent conversionsRewrite expressions involving radicals and rational exponents using the properties of exponents.10 QsDrill it →Radical word problems (ACT)Rewrite expressions involving radicals and rational exponents using the properties of exponents.10 QsDrill it →Rational equations — find a ratio (ACT)Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.10 QsDrill it →Rational equation solving (SAT)Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.10 QsDrill it →Rational exponentsExplain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values.15 QsDrill it →Recursive sequence nth term (ACT)Practice recursive sequence nth term (act) with 10 questions.10 QsDrill it →Scalar times 2×2 matrix (ACT)Practice scalar times 2×2 matrix (act) with 10 questions.10 QsDrill it →Simplifying rational expressions (ACT)Practice simplifying rational expressions (act) with 10 questions.10 QsDrill it →Simplifying square roots (ACT)Rewrite expressions involving radicals and rational exponents using the properties of exponents.10 QsDrill it →Slope-intercept intercepts (SAT/PSAT 8/9/10)For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities.10 QsDrill it →Slope-point line equations (ACT/SAT/PSAT 8/9/10)Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs.10 QsDrill it →Solving quadratics (leading coefficient not 1)Solve quadratic equations in one variable.10 QsDrill it →Solving systems that compare numbersSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Square and cube binomialsUnderstand that polynomials form a system analogous to the integers: they are closed under addition, subtraction, and multiplication; add, subtract, and multiply polynomials.10 QsDrill it →Systems word problems with one value givenSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Solving systems of equationsSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.20 QsDrill it →Systems of equations — find a variableSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.15 QsDrill it →Systems by simple substitutionSolve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables.10 QsDrill it →Writing a two-variable equation from contextCreate equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.10 QsDrill it →Unit conversion word problems (ACT)Practice unit conversion word problems (act) with 10 questions.10 QsDrill it →
Geometry & measurement
Algebra and polygon angle measures (ACT)Practice algebra and polygon angle measures (act) with 10 questions.10 QsDrill it →Density from area and volumePractice density from area and volume with 10 questions.10 QsDrill it →Geometric reasoningPractice geometric reasoning with 10 questions.10 QsDrill it →Parallel and perpendicular lines through a point (SAT)Practice parallel and perpendicular lines through a point (sat) with 10 questions.10 QsDrill it →Parallel and perpendicular slopes from slope-intercept formPractice parallel and perpendicular slopes from slope-intercept form with 10 questions.10 QsDrill it →Volume word problems (ACT)Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.10 QsDrill it →
Statistics & probability
Compare standard deviation of data sets (ACT)Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.10 QsDrill it →Conditional probabilityUnderstand the conditional probability of A given B as P(A and B)/P(B), and interpret independence of A and B.16 QsDrill it →Expected value from probability (ACT)Practice expected value from probability (act) with 10 questions.10 QsDrill it →Find score from meanUse statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.10 QsDrill it →Interpreting data displaysRepresent data with plots on the real number line (dot plots, histograms, and box plots).15 QsDrill it →Problem solving in context (SAT)Use data from a sample survey to estimate a population mean or proportion; develop a margin of error through the use of simulation models for random sampling.10 QsDrill it →Statistics basicsUse statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.25 QsDrill it →
Play it
Every skill above, served in a game.
The placement test finds your student's level in Grade 9 math, then every match serves questions at exactly that level.
More games
Questions
Grade 9 math practice, answered
What math skills do Grade 9 students practice?
Grade 9 practice covers 88 skills across Algebra & functions, Geometry & measurement and Statistics & probability — 1,009 questions in all, each with a worked answer and a math game to drill it.
Is Grade 9 math practice free?
Yes. Every Grade 9 practice question and worked answer is free to use, with no sign-up needed to start. A Premium plan unlocks the full arcade of head-to-head math games.
Which tests does Grade 9 math practice help with?
The skills line up with the ACT, PARCC and ACT Aspire and other tests Grade 9 students take, so practice doubles as test prep.
Tests Grade 9 students prep for:
Keep drilling
Find their level first.
The free placement test pinpoints where your student stands in Grade 9 math — then every game serves questions at exactly that level.