Coordinate

Today we learned about how to coordinate distance, but I already knew the stuff so I finished fast. We tried to figure out the distance in a park and we needed to put posters of something on the trees. 1cm = 100m and the first distance was 300m, but it didn't work. But we knew it was right so we went to the next problem. The next answer was 800m, but it still didn't work. By that time it was time to go, so we left without finishing. But I knew we3 were right.