Look at the problem, re read it...understand it, and then look at the graphs. with the word problem and the chart combined you need to put the information together. once you do that you solve the problem and your good to go! and keep in mond that the things you have listed are very different so do not confuse them all...
The best way to answer such questions is to first know what you are asked to find then write out what u are given then look for all possible ways to solve it
7x13=91 meaning 13 pies were made in total. Since the cafeteria contributed 3 we can subtract 3 from 13. Ultimately meaning that the club contributed 10 pies.
