GED Math Practice Test is a free online practice test with 15 questions on percent change, unit rates, order of operations, mixed numbers, mean, median, linear equations, linear functions, area, pythagorean theorem, volume, probability, factoring, exponents and sales tax. The questions cover percent change, unit rates, order of operations, mixed numbers, mean and median, linear equations, area, the Pythagorean theorem, volume, probability, factoring and sales tax. This is independent practice and is not affiliated with the official exam provider. The test scores itself, and it shows the correct answer and an explanation for every question you miss.
Take it in test mode to see your score and answers at the end, or in practice mode to check each answer straight away. A printable version and an answer key are included, and the test takes about 28 minutes.
This test needs JavaScript. The questions and the answer key are also listed further down the page.
GED Math Practice Test
Name: ______________________ Date: ______________
A price rises from $60 to $75. What is the percent increase? Enter the number only.
Answer: ______________
A 12 oz jar costs $3.60. What is the price per ounce in dollars?
Answer: ______________
What is 18 − 2 × (4 + 3)?
Answer: ______________
What is 2 1/2 × 1 1/5?
Answer: ______________
A student scored 72, 85, 90, 78 and 95. What is the mean score?
Answer: ______________
What is the median of 4, 8, 15, 16, 23 and 42?
Answer: ______________
Solve for x: 5x − 8 = 22.
Answer: ______________
A line has the equation y = −2x + 7. What is y when x = 3?
Answer: ______________
A shape is a 10 by 6 rectangle with a triangle on top. The triangle has base 10 and height 4. What is the total area?
Answer: ______________
A right triangle has legs of 7 and 24. What is the hypotenuse?
Answer: ______________
A box is 5 in by 4 in by 3 in. What is its volume in cubic inches?
Answer: ______________
Two fair dice are rolled. What is the probability that the sum is 7? Write a fraction in simplest form.
Answer: ______________
Which is the factored form of x² + 7x + 12?
A. (x + 3)(x + 4) B. (x + 2)(x + 6) C. (x + 1)(x + 12) D. (x − 3)(x − 4)
What is 5³?
Answer: ______________
An item costs $80 and the sales tax is 7.5%. What is the total cost in dollars?
Answer: ______________
Answer key: GED Math Practice Test
- 25
- 0.3
- 4
- 3
- 84
- 15.5
- 6
- 1
- 80
- 25
- 60
- 1/6
- (x + 3)(x + 4)
- 125
- 86
What this test covers
- Percent change (1 question)
- Unit rates (1 question)
- Order of operations (1 question)
- Mixed numbers (1 question)
- Mean (1 question)
- Median (1 question)
- Linear equations (1 question)
- Linear functions (1 question)
- Area (1 question)
- Pythagorean theorem (1 question)
- Volume (1 question)
- Probability (1 question)
- Factoring (1 question)
- Exponents (1 question)
- Sales tax (1 question)
How the test works
Test mode and practice mode
In test mode you answer every question first and see your score, the time you took and the answers at the end. In practice mode you press Check after each answer to see right away whether it is correct, with the explanation.
How answers are scored
For questions with a number as the answer, you can type a whole number, a decimal such as 2.5, or a fraction such as 3/4. A dollar or pound sign is ignored, and a fraction and its decimal value count as the same answer. Multiple choice questions have one correct choice.
Printing the test and the answer key
Use Print the test for a paper copy with a space for each answer, and Print the answer key for the matching answers. Both print without the rest of the page.
Questions and answer key
The questions
- A price rises from $60 to $75. What is the percent increase? Enter the number only.
- A 12 oz jar costs $3.60. What is the price per ounce in dollars?
- What is 18 − 2 × (4 + 3)?
- What is 2 1/2 × 1 1/5?
- A student scored 72, 85, 90, 78 and 95. What is the mean score?
- What is the median of 4, 8, 15, 16, 23 and 42?
- Solve for x: 5x − 8 = 22.
- A line has the equation y = −2x + 7. What is y when x = 3?
- A shape is a 10 by 6 rectangle with a triangle on top. The triangle has base 10 and height 4. What is the total area?
- A right triangle has legs of 7 and 24. What is the hypotenuse?
- A box is 5 in by 4 in by 3 in. What is its volume in cubic inches?
- Two fair dice are rolled. What is the probability that the sum is 7? Write a fraction in simplest form.
- Which is the factored form of x² + 7x + 12? (A. (x + 3)(x + 4); B. (x + 2)(x + 6); C. (x + 1)(x + 12); D. (x − 3)(x − 4))
- What is 5³?
- An item costs $80 and the sales tax is 7.5%. What is the total cost in dollars?
Answers and explanations
| Question | Answer | Explanation |
|---|---|---|
| 1 | 25 | The increase is $15. 15 ÷ 60 = 0.25, which is 25%. |
| 2 | 0.3 | $3.60 ÷ 12 = $0.30 per ounce. |
| 3 | 4 | Brackets first: 4 + 3 = 7. Then 2 × 7 = 14 and 18 − 14 = 4. |
| 4 | 3 | 2 1/2 = 2.5 and 1 1/5 = 1.2. 2.5 × 1.2 = 3. |
| 5 | 84 | The total is 420 and there are 5 scores. 420 ÷ 5 = 84. |
| 6 | 15.5 | With six values, the median is the mean of the middle two: (15 + 16) ÷ 2 = 15.5. |
| 7 | 6 | Add 8 to get 5x = 30, then divide by 5: x = 6. |
| 8 | 1 | −2 × 3 = −6, and −6 + 7 = 1. |
| 9 | 80 | The rectangle is 60. The triangle is half × 10 × 4 = 20. Total = 80. |
| 10 | 25 | 7² + 24² = 49 + 576 = 625, and the square root of 625 is 25. |
| 11 | 60 | Volume = length × width × height = 60. |
| 12 | 1/6 | 6 of the 36 equally likely outcomes add up to 7, so 6/36 = 1/6. |
| 13 | (x + 3)(x + 4) | Look for two numbers that multiply to 12 and add to 7. They are 3 and 4. |
| 14 | 125 | 5 × 5 × 5 = 125. |
| 15 | 86 | Tax = 0.075 × 80 = 6. The total is 80 + 6 = 86. |
Tips for GED math
- Work out what the question is asking before you start calculating.
- For word problems, write down the numbers and the units first.
- Estimate the answer, then check that your result is close.
Frequently asked questions
How many questions are on this test?
There are 15 questions. Most students need about 28 minutes, but there is no time limit.
Can I print this test?
Yes. Use the Print the test button for the questions and Print the answer key for the answers. The full question list and answer key are also on this page.
Does the test show the answers?
Yes. At the end you see the correct answer and an explanation for every question, and in practice mode you see them after each question.
Do I need an account?
No. There is no sign-up. Your best score is kept only in your own browser.
What should I do if I miss questions?
Look at the skills table on your result page, read the explanations for the questions you missed, and take the test again. If a step in your working looks wrong, the answer checker on this site can help you find the slip.