PrepGrid Exam

GED practice tests that explain every answer

Full-length, exam-style practice with answers you can learn from. Start with a free 23-question Math test, then unlock every subject and unlimited exams for $39 for 6 months.

No card needed for the free test. Independent exam prep, not affiliated with the GED Testing Service.

Sample question

A right triangle has legs of 10 and 24 units. What is the length of the hypotenuse?

A. 26   B. 34   C. 14   D. 27

Show answer

A. 26. c² = 10² + 24² = 676, so c = 26.

How PrepGrid Exam works

  1. Create a free account

    Email and password, no card. Your free 23-question Math test unlocks right away.
  2. Practice your way

    Reveal each answer as you go, or grade at the end. Add a timer for realistic pressure.
  3. Learn from every question

    Each answer comes with a step-by-step explanation, so mistakes turn into points.

All four GED subjects, one low price

Live now

Mathematical Reasoning

Full-length exams of 46 questions covering quantitative and algebraic problem solving.

Math practice
Coming soon

Reasoning Through Language Arts

Reading, writing and grammar practice built from the same exam structure.

Learn more
Coming soon

Science

Life, physical and Earth science questions with data and graphics.

Learn more
Coming soon

Social Studies

Civics, history, economics and geography practice with source-based items.

Learn more

Built for people who study around real life

  • Your first 10 full exams per subject are completely different from each other
  • After that, new exams are generated every time you ask, with shuffled questions and answer order
  • Works on a phone, tablet or computer, with large tap targets and clear type
  • Prepaid for 6 months: no auto-renewal, and reminder emails before access ends

Frequently asked questions

Is PrepGrid Exam free?

You can create a free account and take one fixed 23-question Math practice test with full explanations. Full access to every subject and unlimited exams costs $39 for the first 6 months.

How much does full access cost?

$39 one-time for your first 6 months of full access. Renewing costs $25 for each additional 6 months. Renewing early adds time after your current end date, so you never lose days.

Does my subscription renew automatically?

No. PrepGrid Exam is prepaid access. We email you 3 weeks, 2 weeks and 1 week before your access ends, with a one-click renewal link. You are only charged if you choose to renew.

How many practice questions do you have?

Mathematical Reasoning is live now with a large verified bank, and every exam is built to the same section structure as the real test. Reasoning Through Language Arts, Science and Social Studies are being added.

Can I see the answers while I practice?

Yes. Choose "Show answer" mode to reveal the correct answer and explanation on each question, or choose "Grade at the end" to practice under test conditions and see everything after you submit.

Are there timed practice tests?

Yes. Turn on the timer option when you start an exam. It counts down and submits automatically when time runs out.

More questions and answers