We have a challenge a day for you throughout the summer break...
Each weekday from 20 July to 28 August, a new poster problem will appear on this page.
After you've had a go at the day's problem you can compare your approach to the solutions we have published, which are based on students' work. If you particularly enjoy one of the challenges and would like to explore further, you can follow the link to the original problem on which the poster is based.
You can find the Secondary Poster Problems here.
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Shape times shape poster
These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?
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Clock face poster
Where can you draw a line on a clock face so that the numbers on both sides have the same total?
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Eggs in baskets poster
There are three baskets, a brown one, a red one and a pink one, holding a total of 10 eggs. How many eggs are in each basket?
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You never get a six poster
Charlie thinks that a six comes up less often than the other numbers on the dice. Have a look at the results of the test his class did to see if he was right.
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Dicey operations in line poster
In this addition game, you'll need to think strategically to get closest to the target!
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Hundred square poster
A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?
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Three block towers poster
Take three differently coloured blocks - maybe red, yellow and blue. Make a tower using one of each colour. How many different towers can you make?
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Three way mix up poster
Jack has nine tiles. He put them together to make a square so that two tiles of the same colour were not beside each other. Can you find another way to do it?
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Mixed-up socks poster
Start with three pairs of socks. Now mix them up so that no mismatched pair is the same as another mismatched pair. Is there more than one way to do it?
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A bowl of fruit poster
Can you work out how many apples there are in this fruit bowl if you know what fraction there are?
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