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# The GED Mathematical Reasoning Test: What You Need to Know

The GED Mathematical Reasoning test assesses your familiarity with basic arithmetic and math concepts, including measurements as well as equations and applying these concepts to real-world problems. It might help to reduce your anxiety about this test by first going over what you don’t need to know. You will have a calculator for the second part of the test for more complex calculations. You also don’t need to memorize formulas. You will be given a formula sheet on the exam containing the formulas you need.

On the first part of the test, you will not be able to use a calculator. You have a limited time to do this section, and you cannot return to it once the second section with calculator access starts.

You will need to know multiplication and addition facts to solve the following types of problems:

• Ordering and finding common denominators of fractions
• Finding common factors
• Finding distance between points on a number line (usually subtraction with negative numbers)
• Performing decimal multiplication and division
• Using roots of perfect squares and cubes
• Using square and cube roots in expressions
• Recognizing undefined properties: division by zero, square roots of negative numbers

For the rest of the test, you have access to an on-screen version of the Texas Instruments TI-30XS MultiView™ scientific calculator. You can bring your own version of this calculator. Since the test is computer-based, you need to be comfortable taking a test on a computer. You can log in to the GED site to practice using this calculator and taking the computer-based test.

Part 2 of the test contains problems covering these skills:

• Converting dimensions between scale drawings and actual objects
• Solving multi-step problems using ratios, unit rates, proportions, and percentages
• Converting dimensions between scale drawings and actual objects
• Solving multi-step problems using ratios, unit rates, proportions, and percentages
• Finding the area and perimeter of two-dimensional shapes including composite shapes
• Finding the area and circumference of a circle
• Using the Pythagorean theorem
• Finding the volume and surface area of three-dimensional shapes
• Constructing and explaining data from different types of graphs
• Finding the mean, median, mode, and range of a number set
• Finding a missing value when given an average
• Counting how many different ways objects can be ordered, arranged, or combined
• Finding the probability of one or more events happening
• Simplifying linear expressions
• Simplifying expressions with exponents
• Evaluating algebraic expressions
• Creating algebraic expressions to represent problem situations
• Adding, subtracting, multiplying, dividing, and factoring polynomials
• Adding, subtracting, multiplying, and dividing rational expressions
• Writing an expression from a written description
• Using linear equations to solve real-world problems
• Solving a system of linear equations and real-world problems
• Solving and graphing inequalities and real-world problems
• Solving quadratic equations with one variable
• Locating points and graph linear equations in a coordinate plane
• Finding the slope of a line from a graph, equation, or table
• Determining proportional relationship in graphs and tables
• Identifying linear and nonlinear relationships
• Finding the equation of a line when given the slope and a point on the line or two points on the line
• Using the slope of a line to solve problems and identifying parallel or perpendicular lines
• Comparing functions that are shown in different ways
• Recognizing a function by determining whether or not there is only one output value for each input value
• Evaluating a function