When taking the GED Math test, you are given a GED Math Formula Sheet.
However, you should be familiar with arithmetic and math concepts, measurements, equations, and applying math concepts to solve real-life problems.
The math test is not a memorization test! You’ll have access to a GED Math Formula Sheet that gives you information on like how to calculate the area for different shapes.
You should get familiar with the formulas below just to know what to expect.
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However, you don’t need to memorize everything listed in this guide!
So, you’ll be handed a GED Math Formula Sheet, and you are also allowed to use the Texas Instrument TI-30XS MultiView scientific calculator. Learn here how to -> use the GED calculator effectively.
AREA of a:
square |
Area = side2 |
rectangle |
Area = length × width |
parallelogram |
Area = base × height |
triangle |
Area = 1/2 × base × height |
trapezoid |
Area = 1/2 × (base1 + base2) × height |
circle |
Area = p × radius2; p is approximately equal to 3.14. |
PERIMETER of a:
square |
Perimeter = 4 × side |
rectangle |
Perimeter = 2 × length + 2 × width |
triangle |
Perimeter = side1 + side2 + side3 |
CIRCUMFERENCE of a circle |
Circumference = p × diameter; p is approximately equal to 3.14. |
VOLUME of a:
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cube |
Volume = edge3 |
rectangular solid |
Volume = length × width × height |
square pyramid |
Volume = 1/3 × (base edge)2 × height |
cylinder |
Volume = p × radius2 × height; p is approximately equal to 3.14. |
Cone |
Volume = 1/3 × p × radius2 × height; p is approximately equal to 3.14. |
COORDINATE GEOMETRY |
distance between points = ; (x1, y1) and (x2, y2) are two points in a plane; slope of a line = ; (x1, y1) and (x2, y2) are two points on the line. |
PYTHAGOREAN RELATIONSHIP |
a2 + b2 = c2; a and b are legs and c the hypotenuse of a right triangle. |
MEASURES OF CENTRAL TENDENCY |
mean = , where the x‘s are the values for which a mean is desired, and n is the total number of values for x. median = the middle value of an odd number of ordered scores, and halfway between the two middle values of an even number of ordered scores. |
SIMPLE INTEREST |
interest = principal × rate × time |
DISTANCE |
distance = rate × time |
TOTAL COST |
total cost = (number of units) × (price per unit) |
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The GED Math test covers content fields like Number Operations and Number Sense (some 20 to 30 percent), Measurement and Geometry (20 to 30 percent), Data Analysis, Statistics, and Probability (20 to 30 percent), and Algebra, Functions, and Patterns (also some 20 to 30 percent).
The GED Math subtest includes two parts. In part two, the use of a calculator is permitted. You are allowed 115 minutes to deal with all the GED Math questions.
Last Updated on March 6, 2025.