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Numbers and letterboxes Brainteaser

by David, 11 July 2018 | 0 comments

Brain icon

Tomas is putting a number on a letterbox. He puts on one digit. Then he adds another digit. Tomas looks at it and notices that it makes a number exactly five times the first digit. Tomas adds a third and final digit. Once again, Tomas looks at the number and notices that the three digit…

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Fractional puppies Brainteaser

by David, 27 June 2018 | 0 comments

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Kelly has a pet store. She recently got in a whole litter of puppies and tried to sell them all. On the first day, she sold half of the puppies, plus half a puppy.

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Which bus? Brainteaser

by David, 13 June 2018 | 4 comments

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I caught a bus the other day with a very interesting number.

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Lots of eights brainteaser Brainteaser

by David, 30 May 2018 | 0 comments

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I want to find a number that is divisible by three. I also want all of its digits to be 8s. Does my number exist?

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Play Scopa Activity

by David, 17 May 2018 | 0 comments

Some playing cards

Here’s a traditional card game that’s bound to get your brain pumping. Being able to add up will help, but there’s plenty more to puzzle over!

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Half of 12 brainteaser Brainteaser

by David, 16 May 2018 | 0 comments

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You probably know that half of 12 is six. But the other day, I caught a glimpse of a clock peeking between buildings. At that moment, I noticed that sometimes, half of 12 is seven. How is this possible?

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Square and cube number brainteaser Brainteaser

by David, 2 May 2018 | 0 comments

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When you multiply a whole number by itself, you get a square number. When you take three copies of a whole number and multiply them all together, you get a cube number. There’s only one two digit number that is both a square and a cube. Can you work out what number it is?

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Jenny’s building site brainteaser Brainteaser

by David, 18 April 2018 | 3 comments

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Jenny’s hard at work on a building site. This problem will tax her brain as well as her brawn!

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Mathematical hunches inspire decades of research News

by David, 12 April 2018 | 0 comments

Abstract image of glowing colours and shapes.

It’s that time of year again! The winner of the Abel prize, mathematics’ answer to the Nobel, has been announced. This year’s winner is Robert Langlands, a mathematician more famous for asking questions than answering them.

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Terri’s transport brainteaser Brainteaser

by David, 4 April 2018 | 0 comments

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Terri’s just about to leave to go to a party. She’s trying to work out whether to walk or ride her bike. If she walks at a brisk pace of 5 kilometres per hour, she’ll be an hour late. If she rides her bike at 10 kilometres per hour, she’ll be an hour early! How…

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