CAT Competition Remote & Very Remote

The Computational and Algorithmic Thinking (CAT) competition round for remote and very remote schools is on Thursday 6 May and Friday 7 May 2021

Entries close: 21 April (paper), 4 May (online)
Cost: Free entry for remote and very remote schools

Schools from all over Australia take part in the CAT every year and now (thanks to CSIRO) schools in remote and very remote areas can participate for free!

The competition is an ideal activity to encourage students to solve real-world problems.

Why should my school consider participating?

This one-hour problem-solving competition is designed to encourage student curiosity and promote multiple modes of thinking. Neither teachers nor students need computer programming ability, but the competition will help identify students’ computer programming potential—something they might not normally have the opportunity to demonstrate.

Which students is it suitable for?

It is suitable for all students in all maths classes. The experience helps students become more confident as they take on interesting new challenges.

How long is the competition and what questions are included?

The one-hour competition has a mixture of multiple-choice questions and three-part questions requiring integer answers.

The original problems are designed to be quick to solve and highly approachable, and range in difficulty from very easy to challenging. Some questions test the ability to perform procedures, others require logical thought, while the more challenging problems require the identification and application of algorithms.

To give you some indication of the competition’s content, take a look at The Computation and Algorithms Discovery Series that shows you the types of questions that each year level covers. 

Which year levels can participate?

The CAT has four divisions: Upper Primary (years 5–6), Junior (years 7–8), Intermediate (years 9–10) and Senior (years 11–12). You can register as many students as you like at no cost. Paper and online versions will be available.

How can I prepare my students for the competition?

We’ve made it easy to help you prepare your students:

Is my school eligible to register for free?

Only schools from remote and very remote areas are eligible to enter this round (and all entries are free). To find out if your school is eligible:

  1. Go to
  2. Type in your school name
  3. Select View School Profile
  4. Look under Location 

If your school location is listed as Remote or Very Remote, you are eligible.

You can register now by setting up your account. Once you’ve registered click on Competition and then 2021 Competitions Portal.

What about homeschools?

If you are a registered homeschool please contact us at and we will check to see if you are eligible.

Check out our huge range of maths and problem-solving resources for teachers, parents and students.

Whether it’s just for fun, or preparation for a program, our past papers will give you plenty to think about.

Share key competition and programs dates with our 2021 school poster