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Well done to everybody who had a go at this activity. We only had a couple of solutions sent in, so please email us if you have any more ideas about how to solve these triangles.
Penny from Hillbrook Primary School in the UK sent in this solution:
Good ideas, Penny! I wonder why it's easier if you pair the big numbers with the small numbers, and put the medium numbers together?
Find a great variety of ways of asking questions which make 8.
Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?
Noah saw 12 legs walk by into the Ark. How many creatures did he see?