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Funny money brainteaser Brainteaser

by David Shaw, 16 June 2021 | 0 comments

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Difficulty: Tricky Clare and Jeremy just finished a job overseas, on Dough Island. They received the following as payment, in the island’s currency: A $3 coin A $4 coin A $6 note An $8 note and A $9 note. Clare and Jeremy want to share the money so they both get the same number of…

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The 63 dollar question Brainteaser

by David Shaw, 26 June 2019 | 4 comments

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On Dr Vine’s desk there is some money. There are six pieces of Australian money. The money adds up to $63.

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The tooth fairy’s finances News

by David Shaw, 23 May 2019 | 0 comments

There’s a lot we don’t know about the tooth fairy. We don’t know what they look like, or how they get around, or even what they do with all the teeth they gather. But researchers around the world have been keeping tabs on the finances of this elusive tooth collector.

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Making change Brainteaser

by David Shaw, 3 October 2018 | 3 comments

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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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Thirteen cent coins Activity

by David Shaw, 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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Money under the microscope Activity

by David Shaw, 9 November 2016 | 0 comments

A new purple plastic note.

Australian money is designed to be hard to copy. See if you can find all these features!

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Measuring money Activity

by David Shaw, 8 October 2013 | 4 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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