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GED preparation books and study material to boost your GED score
Start with the free GED math practice test that behaves like the real one: two timed parts, the calculator locked for the first five questions, the formula sheet one click away on every screen, fresh questions every time, and a worked solution for every answer, including the wrong ones.
46 questions · 115 minutes · the same shape as the official test
A cylindrical tank has a radius of 4 feet and a height of 9 feet. What is its volume, to the nearest tenth?
- A452.2 cubic feet
- B113.0 cubic feet
- C1,808.6 cubic feet
- D150.7 cubic feet
Don’t take our word for it
Here is a real question from the engine, built the moment this page loaded. Answer it and you will see exactly what the explanations look like.
Solve the equation 5x + 6 = -9. Complete the sentences below.
To undo the addition first, . The solution is x = .
Generated just now — you will not see this exact question twice.
Math is the subject that holds people back
Of 77,000 people who had already passed three of the four GED subjects, 82% still had math left. Reading was 11%, social studies 5%, science 2%.
If math is the subject standing between you and the credential, you are in the biggest group there is. It is also the most fixable: the test asks a predictable set of skills, and practicing the exact ones you keep missing moves your score faster than anything else.
Source: GED Testing Service, Math Knowledge & Skill Gaps · checked 13 September 2026
All five question types
The formats the real test uses: multiple choice, fill in the blank, drop-down, drag and drop, and clicking a point on a grid.
A calculator that works
An on-screen scientific calculator laid out like the TI-30XS MultiView, with the fraction, root and toggle keys you get on test day.
The formula sheet, explained
Not just a copy of the sheet: each formula with a worked example and the mistake it usually causes.
A weakness report
Your result broken down by the same four categories the official score report uses, with links to practice each one.
Practice one skill at a time
A full test tells you where you stand. Short sets are how you improve. Each set has new questions, and each answer is explained.
Fractions, decimals & percents
Convert between forms, find a percent of an amount, and handle increase and decrease.
Start a 10-question set →
Ratios, rates & proportions
Unit rates, scaling recipes, map scales and the classic distance–rate–time setup.
Start a 10-question set →
Equations & inequalities
Solve one-step to multi-step equations, and read inequality solutions off a number line.
Start a 10-question set →
Functions & graphing
Slope, intercepts, plotting points and reading a linear relationship off a graph.
Start a 10-question set →
Geometry & measurement
Area, perimeter, volume, surface area and the Pythagorean theorem.
Start a 10-question set →
Data & probability
Mean, median, mode, range, tables, graphs and simple probability.
Start a 10-question set →
Test-day reference
The GED math formula sheet
Each formula you are given, plus the seven that students expect and do not get, including compound interest and percent change.
Test-day reference
The TI-30XS calculator
Which keys matter, when the calculator is locked, and whether you can bring your own. Includes a working calculator to practice on.
Scoring
What score do you need?
145 passes. What that means in questions answered, why nobody can tell you an exact number, and what the higher bands are worth.