SAT Math · Algebra
Algebra
Linear equations, functions, inequalities and systems — the backbone of the Math section. Drill each skill until setting up the equation becomes automatic.
- About 35% of Math
- 13–15 questions
- 5 skills
Now live: Digital SAT
Your friend for test day
Practice every SAT topic in the real test's format, then see exactly what to study next — so each session moves your score.
SATAlgebra
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SATInformation & Ideas
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AIPrepFriend Copilot
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Tests
Pick your test
PrepFriend starts with the Digital SAT, covered topic by topic. More tests join as their question banks are ready.
Digital SAT
Both sections, all eight domains, in the adaptive test's format: short timed sets, topic drills and full-length practice tests at real SAT pace.
- Math
- Reading & Writing
- 8 domains
- Easy / Medium / Hard
ACT, Quiz Bowl, USABO and more
PrepFriend supports SAT prep today. ACT, Quiz Bowl and USABO (USA Biology Olympiad) prep come next, each added once its question bank is built and reviewed.
- ACT
- Quiz Bowl
- USABO
Why PrepFriend
Practice that points at what to do next
A final score says how a test went. PrepFriend also says why, and what to practise before the next one.
Build the test you need
Choose subject, topic and difficulty, then cap it by time or by number of questions. A 10-minute warm-up or a full section — your call.
Real-test format
Questions follow the Digital SAT's structure and domain mix, so what you practise is what you will see on test day.
Focus areas from past performance
Every test updates a picture of your strongest and weakest domains and skills. Your five weakest are ranked for you, each one click from a targeted set.
Stay on pace for your goal
Set a target score and a test date. PrepFriend tracks whether your trend will get there, and says so early while there is still time to adjust.
Lessons with every topic
Stuck on a domain? Each topic comes with a short lesson and video, side by side with practice, so you can learn it and try it straight away.
PrepFriend Copilot
An AI study assistant on every page. Ask about your results, focus areas and goals, or have it explain an SAT topic from the lessons.
AI Recommendation
Your next practice set, built from your past answers: your weakest domain to shore up, or a harder level once you are strong everywhere.
Built for families and classrooms
Parents and teachers assign tests and follow progress; students just practise. Everyone sees the part that matters to them.
How it works
From sign-up to test day in four steps
No software to install. Everything runs in the browser.
Sign up with your email
Your email address is all we ask for — nothing else. Parents and teachers can add student accounts that sign in with a username — no email needed.
Take a mixed practice set
A short set across the topics shows where you stand in each SAT domain before you spend time on anything.
Practise your weakest areas
Follow the ranked list: a lesson, then a targeted set, then another check. Short sessions add up.
Rehearse the real thing
Full-length sections at SAT pace, so timing and stamina are sorted before test day.
For everyone involved
One place for students, parents and teachers
Each role gets its own view, and nobody sees more than they should.
Students
Practise, review every answer with its explanation, and watch your weakest areas shrink.
Parents
Assign tests to your own children and see progress by subject and skill, not just a score.
Teachers
Assign work to your class, spot which domains the group struggles with, and plan from there.
Ready to start practising?
All it takes is your email address. Your first SAT practice set is minutes away.