Free ASVAB Math Knowledge Practice Test
Practice the ASVAB (Armed Services Vocational Aptitude Battery) Math Knowledge section with 10 free questions, each with a clear explanation and a Scout tip. No sign-up needed. Math Knowledge is one of the 4 AFQT subtests, so it directly affects whether you can enlist.
What Math Knowledge Covers
Math Knowledge (MK) tests high school math concepts directly, without long word problems:
- Algebra: solving equations like 3x + 5 = 20.
- Order of operations (PEMDAS): the most common trap on the test.
- Exponents and square roots.
- Fractions, decimals, and percents.
- Geometry: area, perimeter, volume, angles, and the Pythagorean theorem.
10 Free Practice Questions

If 3x + 5 = 20, what is the value of x?
(The interactive quiz loads here: 10 questions, instant feedback, explanations.)
How to Score Higher on Math Knowledge
- Undo the math in reverse order when solving equations.
- Memorize the core formulas: area of a rectangle, triangle, and circle; the Pythagorean theorem; the angles in a triangle (180°).
- Plug the answers back in when you're stuck: one of them has to work.
Keep Practicing
- Try another subject on the ASVAB practice test page.
- Estimate your score with the free AFQT practice test.
- Learn it step by step in the ASVAB Scout Study Guide.
ASVAB Scout is an independent study resource, not affiliated with or endorsed by the U.S. Department of Defense or any branch of the military. Requirements can change; confirm anything you're making a decision on with a recruiter or [officialasvab.com](https://www.officialasvab.com).