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Month Mania
Can you design a new shape for the twenty-eight squares and arrange the numbers in a logical way? What patterns do you notice?
Starfish Spotting
How many starfish could there be on the beach, and how many children, if I can see 28 arms?
The Puzzling Sweet Shop
There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. What could each of the children buy with their money?
Age 5 to 7
Challenge Level
We had a few solutions come in which showed how Catrina could work out how many football cards she has.
Joshua from Haslingfield Primary School wrote saying:
I used olive stones in five groups of four and counted them.
Georgia from Woodlea Junior School said:
I think the best idea of how to do this would be in your head because it's just 5 x 4.
Shree from The International School Frankfurt in Germany sent in this:-

Thank you for these ways of calculating, maybe you can see other ways.
Joshua from Haslingfield Primary School wrote saying:
I used olive stones in five groups of four and counted them.
Georgia from Woodlea Junior School said:
I think the best idea of how to do this would be in your head because it's just 5 x 4.
Shree from The International School Frankfurt in Germany sent in this:-

Thank you for these ways of calculating, maybe you can see other ways.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.