Algebra is by far the most important part of SAT math. Isolating a variable is a step in many SAT math problems, depending on whether or not you use elimination strategies. That’s as it should be; after all, you’ve been doing that in math class for the entirety of your high school career, and it’s […]

The phrase “weighted average” may be a little scary sounding, but it’s nothing to get freaked out over. Usually weighted averages on the SAT will use the basic formula for finding the mean (link to “SAT Math Types of Averages“). It’s pretty much the same skill. What is a “weighted average”? Basically, weighted means […]

There are three basic types of averages on the SAT that you should be pretty comfortable with at this point, and all of them start with the letter “m.” Those are the mean, the median, and the mode. In case those aren’t second nature, let’s define them, quickly. Mean This is the most commonly […]

In math class, you probably learned a formula to find the average of a series of numbers. You still have to know that formula, but instead of applying it robotically to a bunch of similar questions, you have to first figure out how to crack the problem. That is, you are not going have all […]