freepracticeSAT.com or Bluebook: How I Would Use Both for SAT Math

By Dr. Daniel Brink, Ph.D. in Mathematics Education, 32 years teaching math · October 28, 2026

Here is how I would use them: take your first Bluebook practice test to get an honest starting score, then do most of your math practice on freepracticeSAT.com, and save the rest of your Bluebook tests for checkpoints and for the last two weeks before the test. Bluebook is the real thing. My site is where you practice in between and find out why you are losing points.

Full disclosure: I built freepracticeSAT.com, so I am not a neutral judge. I have tried to be fair. Bluebook is made by College Board, the people who write the SAT, and every student should use it.

What Bluebook is

Bluebook is College Board's free app for the digital SAT. It is the same app you will use on test day, so the screen, the timer, the tools and the built-in Desmos calculator all look exactly the way they will on the real test. The full-length practice tests in Bluebook are official tests, written by the people who write the SAT, and they are adaptive the same way the real test is: how you do on the first module decides whether the second module is easier or harder.

After a practice test you see your score in My Practice on the College Board website. You can go through each question, see your answer next to the correct one and read an explanation. There is also a button that builds a set of extra practice questions based on how you did.

I tell every student I teach to use Bluebook. Nothing else is as close to test day.

The problem students run into

There are only so many official tests. At the time I am writing this there are eight full-length SAT practice tests in Bluebook, and College Board adds new ones slowly. A student who starts preparing a couple of months before the test can use them all up in a few weeks. I hear the same thing every fall: "I have done all the Bluebook tests. What now?"

There is a second problem that is easy to miss. Once you have taken a test, it is used up. If you take the same test again, you remember questions, and the score goes up for the wrong reason. So each Bluebook test is worth the most the first time, and it pays to be careful with them.

What my site adds

freepracticeSAT.com is math only. Here is what it does that Bluebook does not:

Tests that do not run out. You can take as many full-length math tests as you want, free. They use the same format as the real math section: two modules of 22 questions, 35 minutes each, with Desmos and the formula sheet on screen. From your second test on, the second module is easier or harder depending on how you did on the first, like the real test.
Your level. You can choose easy, medium, hard or mixed questions. A student stuck around 500 usually needs medium questions before hard ones teach them anything.
The reason behind each wrong answer. Every one of my 4,700 questions was written by me, and every wrong answer choice is tied to the mistake that leads to it. So when you pick a wrong answer, the site can tell you which mistake you made, for example that you distributed a number to only the first term in the brackets.
The basics underneath. Each question is also tied to the DNA of SAT math questions: 280 basic skills, from fractions and negative numbers up to functions, that the SAT assumes you already know. When the same basic skill keeps showing up under your mistakes, that is usually the thing to fix first.

Bluebook tells you which questions you got wrong and explains each one. My site tries to find the pattern across all of them, so you know what to work on next.

Where Bluebook is better

The questions are official. Mine are written to match the SAT, but they are not College Board questions.
It covers the whole SAT, reading and writing as well as math. My site only does math.
Its scores come from the people who score the real test. My score is an estimate.
It is the actual test-day app, so practicing in it gets you used to the exact screen.

A month that uses both

Say your SAT is about five weeks away and you have all eight Bluebook tests still unused. This is roughly what I would do for math:

Week 1: one Bluebook test, timed, to get a starting score. Then one test on freepracticeSAT.com to see which mistakes and basic skills come up most.
Weeks 2 and 3: work on those weak skills. Take a full test on my site every few days and check whether the same mistakes still show up.
Week 4: two more Bluebook tests, a few days apart, under real timing. Compare them with your first one.
Week 5: one last Bluebook test about a week before the SAT, then light review. Keep a test or two in reserve in case you retake.

If you want this laid out for you day by day, that is what the $29 plan on my site does. Plans of 30 days or more put Bluebook test days into the schedule for you.

Side by side

	Bluebook	freepracticeSAT.com
Cost	Free	Free tests and results. Optional $29 day-by-day plan.
Sections	Reading and writing, and math	Math only
Full-length tests	A fixed set of official tests (eight SAT tests as I write this)	As many as you want
Questions	Official College Board questions	4,700 questions written by a math teacher
Adaptive	Yes	Yes, from the second test on
Desmos on screen	Yes	Yes
Choose easy, medium or hard	No	Yes
After the test	Score, your answer and the correct answer, an explanation for each question	Estimated score, the mistake behind each wrong answer, the basic skills underneath

Checked on College Board's website on October 28, 2026. Things change, so check there too.

Save your Bluebook tests for when they count. Practice in between here, as often as you like.

Take a free math test See a sample plan

Where these facts come from: