Lizzy: Miss Adamson has four classes with 20 students each. She makes a study guide for her class and uses 5 sheets of paper per student. How many sheets of paper will she use for all of her students?.
Me: Hmmm, let me think. I think this is the detailed solution:
Miss Adamson has a total of 4 x 20 = 80 students. Thus, she will use 80 x 5 = 400 sheets of paper for all of her students. Final answer: 400.