Excel & S.F.

Today we learned how to do a excel. First you go to google docs & go to spreadsheet then it opens and you get started. We also learned S.F. which has a big and small shape. Their is a # on 1 side of a shape and on the other  similar shape on the same side their is a variable. Same thing on other sides. Then using the knowledge you know   you can figure out what the S.F. is. The S.F. is the number that you multiply with a number of a side to find the # of the other similar shape were the variable is.