The GED Mathematical Reasoning test evaluates practical math skills for real-world and college-level readiness. It lasts 115 minutes and includes about 46 questions, split into two parts: calculator-allowed (most questions) and non-calculator (first 5 questions). A TI-30XS calculator is provided on-screen, with a physical one available at testing centers.
Key Topics (aligned with Common Core standards):
- Basic Math (20-30%): Operations with whole numbers, decimals, fractions, and percentages. Includes ratios, rates, and unit conversions. Example: Solve 25% of 80 or convert 3/4 to a decimal.
- Algebra (55%): The heaviest section. Covers solving linear equations/inequalities (e.g., 2x + 5 = 13), quadratic equations (factoring or quadratic formula), systems of equations, functions, graphing lines (slope-intercept form: y = mx + b), and exponents/roots.
- Geometry (20-25%): Focuses on shapes and measurements. Includes perimeter, area, volume (e.g., cylinder volume: V = πr²h), Pythagorean theorem, coordinate geometry (distance formula), and basic trigonometry (sine/cosine for right triangles).
- Data Analysis & Statistics (integrated throughout): Interpret graphs, charts, tables; calculate mean, median, mode, range; probability; and data distributions.
Question Formats:
- Multiple-choice (most common).
- Fill-in-the-blank (numeric answers).
- Drag-and-drop (sort items or plot points).
- Drop-down menus.
- One extended response (write an equation or explanation).
The test emphasizes problem-solving over rote memorization. You'll apply math to scenarios like budgeting, recipes, or blueprints. No proofs or advanced calculus—focus on high school-level essentials.
Preparation Tips:
- Use official GED practice tests.
- Master the formula sheet (provided during the test).
- Practice with/without calculator.
- Aim for 145+ to pass (out of 200).
With consistent study (e.g., Khan Academy or GED.com resources), most pass on the first try. The math mirrors everyday decision-making, building confidence for careers or further education.