Hey everyone,

I’ve been mentoring students for the Digital SAT (DSAT) lately, and if there’s one thing I’ve noticed, it’s that knowing the formulas isn’t enough anymore. With the built-in Desmos calculator and the adaptive nature of the new test, the "how" you solve a problem is just as important as the "what." I put together this SAT Math Reference Sheet & Strategy Guide to bridge that gap. It’s not just a list of equations; it’s a manual on how to use them efficiently.

What’s inside this Guide?

I’ve broken the PDF down into four core pillars that the College Board loves to test:

• Heart of Algebra: Linear equations, systems, and absolute values.

• Passport to Advanced Math: Quadratics, functions, and those tricky exponents.

• Problem Solving & Data Analysis: Ratios, percentages, and interpreting those complex scatterplots.

• Geometry & Trigonometry: Circle theorems, volume, and the right-triangle trig you’ll definitely see.

Why this is different from the "Official" sheet:

The official reference sheet provided during the exam is... let's be honest, a bit bare-bones. It gives you basic geometry, but it won't help you with:

1. The Quadratic Formula: Understanding the discriminant ($b^2 - 4ac$) to find the number of solutions instantly.

2. The Vertex Form: Switching between forms to find the maximum or minimum of a parabola without doing extra math.

3. The "Smart Usage" Tips: I’ve added notes on when to use Desmos vs. when to solve by hand to save those precious seconds.

Quick Strategy Tip:

Whenever you see a geometry problem involving circles, immediately check if you can use the arc length or sector area formulas:

Most students forget that the ratio of the angle is the same as the ratio of the length!

How to Use This PDF:

• Initial Review: Read through to identify which formulas you actually know vs. which ones you just "recognize."

• Active Practice: Keep it next to you while doing Bluebook practice tests.

• The "Final Sprint": Use it as a refresher 24 hours before your test date.

Link: https://www.testprepkart.com/sat/blog/sat-math-refrence-sheet/