The GED Mathematical Reasoning test assesses practical math skills for real-world and workplace scenarios. It lasts 115 minutes and includes about 46 questions in two parts: a calculator-allowed section (most questions) and a no-calculator section (first 5 questions). A TI-30XS scientific calculator is provided on-screen, or you may bring your own approved model.
Content Areas (aligned with Common Core standards):
- Basic Math (20–30%): Whole numbers, decimals, fractions, percentages, ratios, and rates. Examples: Compute 15% tip on a $45 bill or simplify 3/4 + 5/8.
- Algebra (20–30%): Linear equations, inequalities, systems of equations, exponents, polynomials, and quadratic equations. Examples: Solve 2x + 5 = 13 or factor x² – 9.
- Geometry (20–30%): Area, perimeter, volume, surface area, Pythagorean theorem, coordinate geometry, and basic trigonometry (sine, cosine for right triangles). Examples: Find the area of a triangle with base 6 and height 8, or calculate slope between points (2,3) and (5,9).
- Data Analysis, Statistics, and Probability (20–30%): Mean, median, mode, range, probability, data interpretation from graphs, tables, charts, scatter plots, and basic statistical inference. Examples: Interpret a bar graph of sales data or find the probability of drawing a red card from a deck.
Question Formats: Multiple-choice (most common), fill-in-the-blank, drop-down menus, drag-and-drop, and hot-spot (clicking on graphs). About 45% are word problems requiring multi-step reasoning.
The test emphasizes application over memorization—no proofs or advanced calculus. You need a score of at least 145 (out of 200) to pass. Free practice tests on GED.com mimic the format. Focus on understanding concepts, using the formula sheet provided, and practicing with real-life problems to build confidence.