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Chocolate

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Cut it Out

Can you dissect an equilateral triangle into 6 smaller ones? What number of smaller equilateral triangles is it NOT possible to dissect a larger equilateral triangle into?

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Zios and Zepts

On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?

Multiplication Square Jigsaw

Age 7 to 11 Challenge Level:

Nicole from Eastwood Primary wrote to tell us how she tackled this jigsaw:

First I got all the numbers down the side which were $1, 2, 3, 4, 5, 6, 7, 8, 9, 10$ and then got the numbers for the top which were the same and put them where they were meant to go!
After that I timesed them and I then put the other pieces where they were meant to go!

Several of you sent in a picture of your completed square. This one is from Kelsi, who goes to Mason Middle School:


solution 1-10 multiplication grid