Chapter 3

# Mathematics Knowledge: Making Sure the Answers Add Up

The ASVAB’s Mathematics Knowledge subtest is a big deal. It forms a large part of your AFQT score, so you need to do well on it to pass muster. This subtest covers a big range of mathematical concepts, including arithmetic, algebra, and geometry, so it’s a good idea to dust off the corners of your brain where you stashed all this knowledge during high school. You’re going to find questions that include fractions, square roots, inequalities, factoring, graphing, and much more on the test. You’ll have 20 minutes to answer 16 Mathematics Knowledge questions on the computerized ASVAB or 24 minutes to answer 25 questions on the paper version. Calculators are not allowed.

## The Questions You’ll Work On

The Mathematics Knowledge subtest includes the following:

**Basic mathematics:** These questions include ratios, scientific notation, and arithmetic (such as addition, subtraction, multiplication, and division).
**Fractions:** These questions ask you to work with parts of a whole by multiplying, dividing, adding, subtracting, and converting fractions.
**Algebra:** These questions require you to solve equations and inequalities, factor, solve for variables, and work with exponents. You’ll even find a few quadratic equations.
**Geometry:** These questions ask you to define the properties of figures, find angles and relationships between points, and measure specific distances.

## What to Watch Out For

When you work on the Mathematics Knowledge ...