Some missed SAT Math questions come down to one idea you haven’t nailed yet: mixture problems, work rates, the discriminant, completing the square for a circle. Each page below teaches one of those ideas: the key idea in a few lines, the trap that catches most students, and what Desmos can and can’t do for that kind of question. Then you practice it in three levels: a warm-up, test level, and beyond the test.
The drill questions are generated from templates with exact arithmetic, so every answer is right by construction, and each explanation works through the steps.
Algebra
4 conceptsNo solution or infinitely manyWhen a linear equation has no solution or infinitely many, with constants to find.36 questions, 3 levelsSystems with a missing constantParallel and identical lines, and the sign trap in k² = something.36 questions, 3 levelsSystems in word problemsTurning tickets, prices and totals into two equations.36 questions, 3 levelsInequalities in contextBudgets and limits, rounded the way the inequality forces.36 questions, 3 levels
Advanced Math
8 conceptsThe discriminant: how many solutionsCounting solutions and finding tangent lines with b² − 4ac.36 questions, 3 levelsVertex form, maximum and minimumMaximums, minimums and symmetry, including projectiles.36 questions, 3 levelsSum and product of rootsSums, products and missing roots without solving.36 questions, 3 levelsExponential growth and decayReading growth factors and converting between time periods.36 questions, 3 levelsExponent rules and radicalsFractional exponents, radicals and mixed bases.36 questions, 3 levelsRemainder and factor theoremRemainders, factors and unknown coefficients.36 questions, 3 levelsShifts and stretches of graphsShifts, stretches and where the zeros and vertex move.36 questions, 3 levelsRadical and rational equationsSquare roots and fractions that create fake solutions.36 questions, 3 levels
Problem-Solving and Data Analysis
7 conceptsPercent change, chained and reversedChained and reversed percent changes, and the right base.36 questions, 3 levelsRates and unit conversionConversion factors, compound units and square units.36 questions, 3 levelsMixtures and concentrationConcentration problems: mixing, adding water, draining and replacing.36 questions, 3 levelsWork ratesJobs done together, fill-and-drain, and late starts.36 questions, 3 levelsMeans, medians, and changes to dataTotals, combined groups and the score you need next.36 questions, 3 levelsConditional probability“Given that” from tables and percents.36 questions, 3 levelsRatios and proportionsRatios that change when one part changes.36 questions, 3 levels
Geometry and Trigonometry
7 conceptsCircle equationsCompleting the square for center and radius.36 questions, 3 levelsArcs, sectors, and radiansArc length, sector area, radians and inscribed angles.36 questions, 3 levelsSimilar figures and scale factorsScale factors for lengths, areas and volumes.36 questions, 3 levelsRight-triangle trig and complementsSOH CAH TOA, complements and scale factors.36 questions, 3 levelsSpecial right triangles45-45-90 and 30-60-90 side patterns.36 questions, 3 levelsVolume and surface areaVolume formulas, percent changes and displacement.36 questions, 3 levelsAngles, parallel lines, and polygonsParallel lines, polygon angles and isosceles chains.36 questions, 3 levels
Want a mix instead?
Tailored practice in the question bank builds sets from the skills you miss most, across all of Math and Reading and Writing.