What’s on ASVAB math
Two of the ASVAB’s tests are math. Arithmetic Reasoning (AR) asks arithmetic word problems. Mathematics Knowledge (MK) asks high school math. How many questions you get depends on the version you take.
| Test | On the computer (CAT-ASVAB) | On paper |
|---|---|---|
| Arithmetic Reasoning (AR) | 15 questions, 55 minutes | 30 questions, 36 minutes |
| Mathematics Knowledge (MK) | 15 questions, 31 minutes | 25 questions, 24 minutes |
On the computer you may also get up to 15 try-out questions per test. They don’t count, and you get extra time for them.
The two versions work differently. On the computer, the questions adapt to your answers, and you can’t go back to one you’ve answered. A run of rushed wrong answers at the end of a test costs you points, and so does running out of time. On paper there’s no penalty for guessing, so answer every question (official advice).
What this set covers
Each set mixes the two tests, about 10 questions from each, in a new order every time. Every question works out by hand.
- Arithmetic Reasoning: percents, proportions, fractions, signed numbers, rounding, area and bar graphs
- Mathematics Knowledge: like terms, writing expressions, polynomials, factoring, quadratic equations, inequalities, systems of equations and exponent rules
The catch? MK also asks geometry (two of its official samples are about a brick’s volume), and this set only has rectangle area. It also leaves out angle facts, square roots and radicals, primes and factors, and fractions with variables in them. On the AR side, it leaves out averages, interest and percent change. Our questions on those are built for a calculator.
For geometry, try our geometry practice set. It keeps a calculator in the toolbar, so leave it closed and work by hand.
The AFQT score you need
Your AFQT score is a percentile from 1 to 99. It comes from AR and MK plus two reading tests, Word Knowledge and Paragraph Comprehension (ASVAB scores). Each service sets its own minimum, and some ask more of GED holders.
| Service | Published minimum AFQT | Where it says so |
|---|---|---|
| Army | 31 (no GED number given) | goarmy.com ASVAB page |
| Navy | No number on its site | navy.com requirements |
| Air Force | 31, or 50 with a GED | airforce.com ASVAB page |
| Space Force | No number on its site | spaceforce.com enlisted page |
| Marine Corps | 31, or 50 with a GED | marines.com requirements |
| Coast Guard | 32 (no GED number given) | gocoastguard.com |
Our guide to joining the military with a GED explains the AFQT categories and the other rules for GED holders. It also has a free checker for your score.
ASVAB math vs GED math
The big difference is the calculator. The GED gives you one after a short no-calculator part. The ASVAB never does, because doing math by hand is part of what it tests (ASVAB FAQ).
The skills overlap a lot. GED word problems use the same percents, ratios and rates as AR, so our word problems guide helps with both.
Free ASVAB math practice from the official site
- Arithmetic Reasoning sample questions: Four official word problems.
- Mathematics Knowledge sample questions: Four official questions, from a brick’s volume to a fraction with variables in it.
- Preparing for the ASVAB: Official tips, including how the computer and paper versions differ.
- The Army’s ASVAB page: Links the Army’s ASVAB Challenge app.
Written by
Coach Crissy
Math instructor
Coach Crissy teaches the video lessons behind the BooknBoost GED math course, working through GED-style problems on camera: ratios and proportions, percent and interest, mean, median and mode, slope, and the geometry students meet on test day.
Keep going
Joining the military with a GED
Each branch’s rules for GED holders, and a free AFQT checker.
Math word problems, solved
15 worked examples with percents, rates and ratios, the core of AR.
Fractions, decimals and percents
25 practice questions with the working shown, new every time.
Expressions and polynomials
Like terms, factoring and multiplying, the algebra MK asks for.