Digital SAT · Math Section

Core 20
Diagnostic Set

One question from every major SAT Math idea — concept, key fact, worked example, then the real thing.

20QUESTIONS
~25 MIN

Before you start

Each question opens with a concept card, a fact to memorize, and a worked mini-example — then the actual SAT-style question. Answer, see the explanation instantly, move on. Full answer key with step-by-step solutions is collected at the end.

AlgebraQ1–Q5
Advanced MathQ6–Q10
Problem-Solving & DataQ11–Q15
Geometry & TrigQ16–Q20
Scoring — one point per correct answer, no penalty for guessing.
Timer — starts the moment you begin, shown at the top throughout.
After each answer — correct or incorrect, the explanation appears immediately below your choice.

Drill Complete

0/20

Time: 00:00

Nice work.

Score by domain

Answer Key & Full Solutions

SAT MATH CORE 20 — verified step-by-step explanations