159908

I started off by colour coding the squares so it is much easier to know which one I'm talking about. The first thing I noticed was that the two triangles in each picture had the same perimeter and area. Then I realized that in each picture the squares high was ascending by four studs vertically. Then I saw that too get from the first picture to the second one you had to do the equation 12✖️2 to both of the triangles but to get from the second one to the third one you had to do the equation 24✖️3. Then for the division to get from the third picture to the second picture you had to do the calculation 72 ➗ 3 and to get from the second one to the first one you had to do 24➗2.