Are you confused about which calculator to use, or whether calculators are allowed or not? That’s a fundamental question that comes to the mind of every SAT aspirant!
Initially, when we used to have a paper pen SAT, calculators were allowed only for one of the two math sections, but now, since the SAT math is a digital adaptive test, you can use the calculator for both sections. In fact, the digital SAT has an embedded Desmos calculator.
Accepting the use of a calculator for both sections in the digital SAT guidelines gives students unlimited potential to push their accuracy and speed when dealing with more verbose and complicated problems.
You might be feeling unsure about using the embedded Desmos calculator during the test, as you are handy with your own calculator!
That, too, isn’t an issue; you can use your own calculator as well for the digital SAT.
But, you need to make sure the calculator you are taking for the test is approved according to the SAT guidelines.
If you choose to bring your own calculator to use throughout the Math section, there’s more to it than making sure you have a fresh set of batteries. Below, we will explore which calculators are allowed and tips for using them to their fullest potential on test day.
Approved Calculator Models
The College Board permits a variety of calculators for the SAT; however, not all calculators are treated equally. Here is what you can and cannot use:
Allowed:
- The Desmos calculator embedded in the Bluebook testing app: This is a powerful calculator that includes features similar to a handheld graphing calculator. If you are familiar with how to use this calculator, the embedded version is a good choice.
- Only non-CAS (computer algebra system) calculators are allowed. Check to make sure your calculator does not have CAS functionality. A quick way to tell if a calculator has CAS functionality is to check if it:
Has “CAS” in the model name.- Can manipulate algebraic expressions symbolically (like factoring and expanding).
- Can solve equations and return exact symbolic answers, not just decimals.
e.g., TI-84 Plus, TI-Nspire (non-CAS), Casio fx-9860GII, HP Prime (non-CAS)
- Scientific calculators: This type of calculator has many functions useful for solving equations and problems in science, statistics, and math. Many calculators will come with built-in memory for temporary storage of calculations, as well as statistical functions, pi, trig functions, and scientific notation.
e.g., Casio fx-300MS, TI-30XS Multiview
- Four-function basic calculators (not recommended): This type of calculator has only four functions of adding, subtracting, multiplying, or dividing. Some have percentages and square roots. This type of calculator is not recommended as they do not usually follow the order of operations.
- Basic models are not recommended because they are limited to only some functions
Not Allowed:
- Calculators with a QWERTY keyboard
- Calculators that have built-in CAS capabilities. Examples are:
- Hewlett-Packard: HP Prime; HP 48GII; all model numbers that begin with 40G, 49G, or 50G.
- Texas Instruments: TI-Nspire CAS, TI-Nspire CX II CAS; All model numbers that begin with TI-89 or TI-92 or have “CAS” in the model name. Note that TI-Nspire models that do not include “CAS” in the name are acceptable
- Casio: ClassPad 300, 330, or 400; ClassPad II (fx-CP400); ClassPad fx-CG 500 or fx-CG500; Algebra fx 2.0; all model numbers that begin with CFX-9970G.
- Devices like laptops, tablets, phones, or smartwatches
- Calculators with apps, menus, or programs to perform symbolic algebra manipulations (e.g., solving algebra equations at the symbolic level).
- Devices for electronic writing pads or pen-input.
- Calculator apps on cell phones.
- Calculators with paper tape.
Tip: Always verify with the College Board’s official calculator policy prior to the test day if there have been any changes.
Calculator Tricks for the SAT
Being smart and strategic in how you use your calculator is most important. Smart calculator use isn’t just about speed—it’s about strategy. Here are essential tips to master:
1. Know Your Functions Ahead of Time
Familiarise yourself with:
- Fraction to decimal conversion
- Storing variables for repetitive use
- Graphing equations to find intersections and roots
- Solving systems of equations (via matrices or graphing)
2. Use Graphs for Complex Algebra
When you’re stuck solving a quadratic or unfamiliar expression, graphing can be faster than factoring or expanding manually.
3. Check Your Answers
After solving algebraically, plug values back into the equation using your calculator to verify. It’s a powerful tool for double-checking.
4. Save Time on Repetitive Calculations
Use the “ANS” key or store values in memory (like ALPHA + a letter) to avoid retyping.
5. Avoid Over-Reliance
Don’t use your calculator for every problem—some questions are actually faster without it. Use estimation and logic where applicable.
Practice Like You Play
Practice with the exact calculator you’ll use on test day. Know its quirks, speed, and shortcut keys. Build speed and trust in your calculator just like you do with formulas.
Bonus: Best Calculator Settings for the SAT
- Set your mode to degrees (not radians).
- Turn off unnecessary features (like Grid/Trace) to simplify the screen.
- Reset memory before test day to avoid distractions or errors.
Closing thoughts
Your calculator can be a great friend – if you know how to use it. Be sure to practice both mental math and calculator strategies so you can solve SAT Math problems confidently.
How The Princeton Review Singapore Supports You in Mastering SAT Math (with Your Calculator)
Expert Teaching on Calculator-Allowed Strategies
- Discover when and how to effectively use your calculator—not only how to use it, but how to save time with its use.
- Instructors take you through graphing functions, solving systems, memory storage, and other features to get you ready for SAT-style questions.
Approved Calculator Strategy
- Obtain personal advice on the best model of calculator to use, in compliance with College Board requirements, so you are able to use your calculator efficiently and effectively on test day.
- Practice ideal settings (degree mode, contrast, etc) to give you as little stress as possible on test day.
Realistic Practice with Calculator Integration
- All full-length practice tests mimic the official exam with the embedded Desmos calculator, which helps you practice the right amount of each that builds comfort and speed.
- Timed drills identify ways to take advantage of the calculator as well as no calculator options, so you will know when to incorporate and when to erase the calculator.
Data-Driven feedback
- Score reports show patterns of mistakes you are making; over-reliance on the calculator or under-utilization. Understand the areas of focus you need support with to correct issues.
Clever Tricks & Shortcuts
- There are test-proven tricks like using graphs to solve equations, checking answer choices by substitution, and using tables to explore functions.
Workshops and 1:1 Support
- You can sign up for workshops that are specific to your calculator, or you can book 1-on-1 time with a tutor to learn how to use the complex functions on your calculator.
- Tutors will help you develop a customised strategy from your calculator and math strengths.