GED Math Study Guide

1. Overview of the GED Math Test

The GED Mathematical Reasoning test assesses your understanding of core math concepts and problem-solving skills. The test is divided into two parts and allows the use of an on-screen calculator (TI-30XS) for the second part. You will have 115 minutes to complete approximately 45 questions.

Math Topics Covered:

• Basic arithmetic (operations with whole numbers, decimals, fractions, percents)
• Algebra (expressions, equations, inequalities, and linear functions)
• Geometry (area, volume, perimeter, coordinate plane, Pythagorean theorem)
• Data analysis and statistics (mean, median, mode, interpreting graphs and charts)

2. Foundational Arithmetic Skills

Before diving into algebra and geometry, it's essential to be comfortable with basic arithmetic:

• Adding, subtracting, multiplying, and dividing: Both with whole numbers and decimals
• Fractions: Simplifying, converting between improper and mixed, performing operations
• Percents: Finding percent of a number, calculating percent increase/decrease

Tip: Use estimation to quickly eliminate unreasonable answer choices on multiple-choice questions.

3. Algebra Essentials

Algebra is a major component of the GED Math test. Focus on understanding how to manipulate variables and solve for unknowns.

Key Concepts:

• Evaluating algebraic expressions
• Solving one-step and multi-step equations
• Graphing linear equations
• Understanding slope and intercepts
• Solving and graphing inequalities

Sample Problem:

Solve for x: 3x - 7 = 11

Solution: Add 7 to both sides → 3x = 18 → Divide by 3 → x = 6

4. Geometry and Measurement

Geometry questions test your ability to work with shapes, formulas, and spatial reasoning. Memorize common formulas, and understand how to apply them in context.

Formulas to Know:

• Area of a rectangle = length × width
• Area of a triangle = (base × height) ÷ 2
• Volume of a cube = side³
• Volume of a rectangular prism = length × width × height
• Pythagorean Theorem: a² + b² = c²

Coordinate Plane:

Understand how to plot points, interpret coordinates, and find distances between points. Know how to calculate the slope of a line using rise/run or the slope formula.

5. Data Interpretation and Statistics

You’ll see charts, graphs, and tables on the GED Math test. Practice interpreting data accurately and applying statistical concepts such as:

• Mean (average): add all values and divide by the number of values
• Median: the middle value when numbers are in order
• Mode: the number that appears most often
• Range: the difference between the highest and lowest values

Understand how to analyze line graphs, bar charts, histograms, and scatterplots.

6. Calculator Tips

The GED allows the TI-30XS calculator for most of the math section. Familiarize yourself with this calculator before test day.

• Practice entering fractions, exponents, and negative numbers
• Use the memory function for multi-step calculations
• Double-check that you’re in the correct mode (degree vs. radian)

7. Practice and Review Strategies

Consistency and targeted practice are key to success in GED math. Follow these study habits to build confidence and accuracy:

• Use timed practice tests: Simulate test conditions
• Review incorrect answers: Understand your mistakes
• Focus on weak areas: Don’t spend too much time reviewing what you already know
• Build a formula sheet: Keep essential formulas handy

8. Test-Taking Strategies

• Read each question carefully and identify what’s being asked
• Eliminate obviously incorrect answers
• Use scratch paper for calculations
• Don’t leave questions blank – guess if needed
• Manage your time wisely across questions

9. Common Mistakes to Avoid

• Misreading the question or overlooking units
• Forgetting to simplify your final answer
• Using the wrong formula for geometry problems
• Entering numbers incorrectly into the calculator

10. Final Thoughts

Success on the GED Math test comes down to preparation and confidence. Focus on understanding concepts rather than memorizing steps. Use reliable study materials, take regular practice tests, and don’t be afraid to seek help when needed.

Remember: Each small improvement adds up. With consistent effort, you can master the math section and move one step closer to earning your GED credential.