This is a powerpoint with 32 slides focusing on percent of numbers, fractions of a number, ratios thinking in fraction form, some decimals all with problem solving. I am trying to get the students to think about the power of estimation first, then making sense of the problem and if they know which operation or strategy to use. Then solve showing work. Every other page has the answers displayed. I am going to time each slide and have a student come up to explain and show their work, then we will advance to the answer slide. This is part of the number sense common core standards. Enjoy and change if necessary.