One section of the GED math test involves the basic use of numbers, including placing them in real-world problems and as abstractions in simple equations (e.g. addition, subtraction, division and multiplication). Like all sections of the GED math test, takers can use a calculator along with a pen and paper. Test takers may also want to memorize the number line: the sequential order that numbers go in (e.g. -1, 0, 1, 2, 3, etc...) and what each symbol stands for (such as a "+" representing addition).
Another quarter of the test requires the test taker to demonstrate a knowledge of high school geometry. Test takers should prepare by learning a wide array of commonly used geometry equations, such as the Pythagorean Theorem (the equation used to find the length of the sides of a triangle; A-squared + B-squared = C-squared) and the slope of a line (y =mx +b).
One-fourth of the test assesses of the test taker's knowledge of data analysis and statistics. Knowing the definition of "median" (the 50% of a data set), "mean" (the average value of a data set) and "mode" (the most repeated number in a data set) can help a great deal with this portion. Additionally, you should know how to interpret a graph in this section, which may involve overlapping tools from the geometry section.
The final fourth of the GED math test consists of an algebra assessment. You should know how to manipulate equations in order to solve for a variable. Remember that whatever you do to one side of an equation, you must do to both sides; thus, if you are solving for "x" in the equation 3x = 9, you must divide both sides by 3 in order to have the "x" stand alone.