These are a set of 24 task cards relating to the 7th grade common core state standard 7.RP.3. There are four questions for each: sales tax, discount, tips, commission, simple interest, and percent increase/decrease. I have included an answer key on the first slide. There is also a 1 page (front and back) sheet that can be used for students to show and record their work. They could also do it on loose leaf paper. I have also included a worksheet page that includes all 24 questions for students who are absent. You can use this during a class period or two or use the questions one at a time during your instruction. If you have any questions or suggestions please let me know. If you see any errors please let me know so I can make corrections.