GED Math Formula Sheet: 2026 Printable Study Guide
Use this GED math formula sheet to review the formulas you are most likely to apply on Mathematical Reasoning questions. It is designed for quick practice before you take a timed GED Math practice test, not as a replacement for solving full problems.
Quick Answer: How to Use the GED Formula Sheet
The best way to use a GED math formula sheet is to connect each formula to a problem type. Do not only read the list. For each formula, write one sample problem, label the units, solve it once without looking, and then retake a short online math quiz to confirm you can apply it under time pressure.
Printable GED Math Formula Sheet
The GED Mathematical Reasoning test can include geometry, algebra, quantitative reasoning, data analysis, and calculator decisions. The table below groups common formulas by the situation where you would use them.
| Topic | Formula | When to Use It |
|---|---|---|
| Rectangle Area | A = l x w | Flooring, painting, garden plots, and any rectangular surface. |
| Triangle Area | A = 1/2 bh | Triangular signs, roof shapes, graph regions, and composite figures. |
| Circle Area | A = pi r^2 | Round tables, circular lawns, wheels, and radius-based area questions. |
| Circumference | C = 2 pi r or C = pi d | Distance around a circle, tire rotation, fencing, or circular borders. |
| Rectangular Prism Volume | V = lwh | Boxes, rooms, containers, and three-dimensional rectangular objects. |
| Cylinder Volume | V = pi r^2 h | Cans, tanks, pipes, and round containers. |
| Slope | m = (y2 - y1) / (x2 - x1) | Lines on a graph, rate of change, ramps, cost per unit, and trend questions. |
| Percent | part / whole = percent / 100 | Discounts, taxes, score percentages, growth, and comparisons. |
| Probability | favorable outcomes / total outcomes | Chance questions involving cards, groups, survey results, or simple events. |
| Mean | sum of values / number of values | Averages for scores, prices, temperatures, wages, and data tables. |
GED Math Formula Examples
A formula sheet becomes useful only when you can choose the right formula from a word problem. Use these examples as quick drills before a full math practice test.
Geometry Example
Problem: A rectangular room is 12 feet long and 9 feet wide. How many square feet of flooring are needed?
Setup: Use A = l x w.
Answer: 12 x 9 = 108 square feet.
Slope Example
Problem: A line passes through (2, 5) and (6, 13). What is the slope?
Setup: Use m = (y2 - y1) / (x2 - x1).
Answer: (13 - 5) / (6 - 2) = 8 / 4 = 2.
Calculator and Non-Calculator Formula Strategy
The GED math test includes a short non-calculator portion and a longer calculator-allowed portion. A formula sheet helps in both parts, but the strategy changes depending on whether the calculator is available.
| Test Situation | Best Formula Strategy | Common Mistake |
|---|---|---|
| Non-calculator questions | Use simple arithmetic, estimate first, and avoid messy decimal work unless necessary. | Starting calculations before identifying the relationship in the problem. |
| Calculator questions | Set up the formula on paper first, then use the calculator for arithmetic accuracy. | Typing numbers into the calculator without knowing what they represent. |
| Graph and table questions | Find the labels, units, and change between values before choosing a formula. | Confusing the x-axis and y-axis or using the wrong units. |
How to Study GED Math Formulas in 20 Minutes
- Pick one formula group. Start with geometry, slope, percent, or data analysis instead of reviewing everything at once.
- Write the meaning of each variable. For area, label length, width, base, height, radius, and diameter before calculating.
- Solve one easy problem. Confirm you can substitute numbers into the formula correctly.
- Solve one word problem. Practice deciding which formula applies without being told.
- Take a timed quiz. Use the GED Math Practice Test to check whether formula review transfers to actual test questions.
What This Formula Sheet Does Not Replace
A GED formula sheet is a reference, not a full study plan. It will not teach reading comprehension, calculator fluency, multi-step algebra, or how to interpret answer choices. If your formula work is accurate but your score is still low, take a broader full GED practice test and review your score categories in the results analysis guide.
Official Source Note
For current policies and official preparation materials, compare your practice with the official GED math formula sheet, the GED test subjects overview, and the TI-30XS MultiView calculator information. This page is an independent study resource.
GED Math Formula Sheet FAQ
Common questions about formulas, calculator use, and printable GED math study resources.
GED test takers can use an on-screen formula sheet for the Mathematical Reasoning test. Still, you should practice ahead of time because the sheet does not tell you which formula to choose, how to label units, or how to set up a multi-step word problem.
Focus on area, perimeter, circumference, volume, slope, percent, ratio, probability, mean, and basic algebra formulas. These show up often in geometry, data, graph, and word-problem questions.
No. Memorization helps with speed, but the higher-value skill is knowing when a formula applies. Spend more time solving examples than rereading the formula list.
Yes. Use the print button at the top of the page or your browser print command. For broader offline review, pair it with the printable GED practice test PDF.