There are to be 6 homes built on a new development site. They could be semi-detached, detached or terraced houses. How many different combinations of these can you find?
This challenge is to design different step arrangements, which must go along a distance of 6 on the steps and must end up at 6 high.
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?
Many of you sent in your answer to this problem, but very few of you told us how you did the problem. Remember, it is important to tell us what you did to solve the challenge so that someone else could follow it if they were stuck. Georgie C from St George's School did send us details:
Well done, Georgie. Well explained solutions were also sent in by Azure from Hanoi International School and Plum from Ardingly College Junior School.