When you prepare for the ACT, time always matters—especially in Math. Your calculator can be a great tool, provided it is an ACT-allowed calculator and you’re using it correctly. Selecting the wrong one or misusing the calculator could seriously impact your score.
This guide will cover everything Singapore students need to know about the official ACT calculator policy so that the test day is less stressful.
1. When You Can Use a Calculator
The ACT allows calculators in the Math section only. You won’t be able to use the calculator during the Science, Reading, or English section, so when it comes to that, be ready to either do mental math or apply other types of reasoning.
Key points
Use is optional but strongly encouraged for more complicated calculations.
You must do it alone – sharing a calculator is not permitted.
2. Calculator Types that are Approved
Most four-function calculators, scientific calculators, and graphing calculators are eligible, provided they do not have prohibited features.
Some safe calculator types for Singapore test-takers:
- TI-30XS Multiview (Scientific)
- Casio fx-991EX (Scientific)
- TI-84 Plus series (Graphing)
If you are not sure about the approval of your model, verify with the ACT official list of approved calculators.
3. Identifying Calculators You Can’t Bring.
The ACT does not allow calculators with features used specifically for an unfair advantage. The most common types of calculators that are not permitted are the following:
- Computer Algebra System (CAS) calculators – ex. TI-Nspire CAS, HP Prime CAS
- QWERTY calculators – calculators that have a keyboard layout similar to a typewriter.
Anything with Internet or text storage capabilities – anything that connects to the Internet or has a text function. Plugging into a wall – anything that must be plugged in.
Pro tip: Some models are approved, but only if certain elements are turned off. For example, non-CAS TI-Nspire is approved, but you must disable the test mode before taking the exam.
4. Tips for Test Day for Students in Singapore.
Check early: It is wise to verify your calculator model at least 1 week before your ACT exam date.
Bring backups: you never know when you should change out batteries, and having a backup calculator can save you the last-minute scramble.
Label your device: make sure to label your device or yours and your friends while you are taking breaks.
Do not use new models: be sure to use a calculator that you have used during your practice tests.
5. What Happens If You Don’t Follow the Guidelines?
- If your calculator is determined to be not permissible while testing:
- It may be confiscated immediately.
- You could lose time attempting to adjust.
In some cases, your score could be voided.
Final Thoughts
Your calculator is supposed to assist you in being faster, not causing you problems. If you’re aware of the ACT calculator rules and you’ve practiced up to test day, you’ll have less to worry about.
Next step: Go to the official ACT calculator page to check your model, and make arrangements well in advance of the test.
How The Princeton Review Singapore Can Help You with ACT Calculator Prep
While students are mostly obsessed with comprehending math concepts, many forget that calculator strategy is a competence of its own. The Princeton Review Singapore incorporates calculator mastery into ACT prep, allowing students to know exactly when and how to use the calculator for maximum efficacy.
Here’s what you’ll get:
- Calculator-Approved Practice Tests – Full ACT-length practice tests and simulations with test conditions and calculator use that respect ACT policies.
- Know Your Specific Model – You will receive tips and tricks specifically for your exact calculator model, so that you will not be fumbling on the test day.
- Time Saving Shortcuts – The strategies will include how to utilize calculator functions (e.g., memory recall, converting fractions to decimals, etc.) that will speed up your completion of questions.
- Policy Updates – Any modifications to ACT calculator rules will be provided to you prior to your test date.
- Test Day Prep-Free of Stress– Ongoing support about backup batteries, labeling your calculator, and functions not to use.
With The Princeton Review Singapore, you’re not just learning how to do math-you’re learning how to think and operate like an elite scorer, and not make expensive mistakes while using the calculator.