So I am planning my quilt for my fall exchange blocks and one of the borders I want to do is using the Quilter's Cache Maple Leaf pattern. I want to make them into 6" blocks rather than the 12" do I divide all the measurements in half or only the main numbers? For example, it calls for two 4 and a half inch squares. Do I make 2 and a half inch squares or 2 and a quarter? Thanks!