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Making change Brainteaser

by David, 3 October 2018 | 0 comments

Brain icon

Australia has six coins that are commonly used – 5 cents, 10 cents, 20 cents, 50 cents, $1 and $2. How many different ways can you make exactly 50 cents in Australian coins?

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Five-cent star Activity

by David, 1 August 2017 | 0 comments

Lots of coins on a star.

Here’s a tricky puzzle for you! An eight pointed star, and seven coins. Can you put all the coins onto the star?

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Thirteen cent coins Activity

by David, 2 May 2017 | 0 comments

small circles of paper with the numbers 1, 2, 5, 13, 29 and 64 written on them.

You’re probably familiar with 20 cent and 50 cent coins. But different countries have different values for their coins. So what’s the best way to number coins?

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Coins around the equator Activity

by David, 11 April 2016 | 0 comments

A jar with a slot in the top and a sign saying 'silver coins for maths'.

How much money would it take to put a line of coins around the equator? With a bit of research and a bit of maths, you’ll soon know the answer!

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Coin toss game Game

by David, 15 October 2013 | 0 comments

A square grid areas close to the lines are coloured green. areas far away from the lines are coloured red. there is a coin on the grid.

Here’s a fun game that will help you explore probability. With a bit of thought you’re more likely to win. Are you smart enough to work it out?

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Measuring money Activity

by David, 8 October 2013 | 0 comments

Jar full of Australian coins. ©iStock.com/CraigRJD

There are some surprising patterns that can be revealed in Australian coins if you take a closer look.

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