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A pupil from Lauriston School said:
Sam from Godalming College submitted this solution which he says he did by sight:
Well done Sam and thank you everyone for writing in!
Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?
Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?