Why this site exists
GED Testing Service looked at 77,000 people who had already passed three of the four GED subjects and had one left to go. For 82% of them, the one left was math. Reading was 11%, social studies 5%, science 2%.
Math is the subject that stands between a lot of people and a credential that changes what work they can get. There is plenty of free GED math practice online already, but almost none of it behaves like the test. It is multiple choice only, untimed, with the answer hidden under a button and no working shown. The real test has five question formats, takes the calculator away for the first stretch, hands you a formula sheet, and runs a clock.
We built the practice we thought was missing: the same shape as the real thing, free, with a worked explanation for every answer including the wrong ones.
How the questions are made
Our questions are original and they are generated, not stored. Each one is built when you press start: its own numbers, its own context, its own answer choices, and its own worked solution, all computed together from a single random seed.
That design does three useful things:
- A retake is never the same test. Practicing twice measures whether the skill stuck, not whether you remembered an answer.
- The answer key cannot drift. The question and its answer come out of the same calculation, so they cannot disagree with each other.
- Nothing is copied from anyone. There is no borrowed question bank here, because there is no question bank — there are 101 generators.
Every generator is run against thousands of seeds before it ships. That automated check refuses to build the site if any question turns up with no correct option, duplicate answer choices, a missing explanation, or an answer that falls outside the range the question allows. It is a low bar, and it is one a surprising amount of published GED material does not clear.
How we handle facts
Each claim about the test (question counts, timing, calculator rules, passing scores, what is on the formula sheet) is sourced to something GED Testing Service or ACE published, with the date we checked it. Where they publish nothing, we say so instead of inventing a number. Our editorial policy spells out how that works, including the things we deliberately refuse to state precisely.
Who writes it
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.
The lesson videos behind this site are taught by Coach Crissy, working through GED-style problems on camera. The site’s explanations follow the same approach: show the step, say why it happens, then name the mistake it prevents.
What is free, and what is not
The practice tests, the topic sets, the explanations, the formula sheet, the calculator and the study guide are free, with no account and no email required. We sell a video course for people who want taught lessons alongside the practice, and that is the only thing we sell. No page here is sponsored.
Found a mistake?
Tell us. Mathematics has the useful property that errors are provable: show the working and we will change the page. We would much rather hear it from you than leave a wrong answer up for a student who trusts it.