CAT 2020 Upper Primary
CAT 2020 Junior
CAT 2020 Intermediate
CAT 2020 Senior
CAT 2019 Upper Primary
CAT 2019 Junior
CAT 2019 Intermediate
CAT 2019 Senior
CAT 2015 Upper Primary
CAT 2015 Junior
CAT 2015 Intermediate
CAT 2015 Senior
CAT 2016 Upper Primary
CAT 2016 Junior
CAT 2016 Intermediate
CAT 2016 Senior
CAT 2017 Upper Primary
CAT 2017 Junior
CAT 2017 Intermediate
CAT 2017 Senior
CAT 2018 Upper Primary
CAT 2018 Intermediate
CAT 2018 Junior
CAT 2018 Senior

CAT Past papers: Single divisions PDF

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Computational and Algorithmic Thinking (CAT) is a great way to introduce students to algorithmic thinking, which is a branch of mathematics that involves developing a procedure or formula to solve a problem. CAT problems are designed to be quick to solve and encourage students to develop informal algorithms and apply them to test data of increasing size or complexity.

Choose a paper from a particular year and division. Each paper includes six multiple-choice questions that are relatively easy to solve, followed by nine more challenging problems and also comes with an answer key but not fully worked solutions. There are four divisions available: Upper Primary, Junior, Intermediate and Senior.

Practising on past competition problems is an ideal activity for mathematics classes or individual students, to train for CAT or explore algorithmic thinking.


These papers are digital downloads. After purchase, they will be delivered to you automatically via a download link in an email.

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