This is a set of 24 task cards that are designed to help children calculate a discount and sale price. I use these as beginner cards because I teach kids to find discounts mentally (find 10%, double it for 20%, triple it for 20%, etc). As they first start to apply the skill, I give them all discounts that are multiples of 10% (mainly 20%) and prices that work fairly easily without the need of a calculator. Prices range from less than $10 to over $100 for practice with how to find ten percent in numbers of varying lengths. The cards could also be used with the proportion method or multiplying by .20 or .30 method.
Each card shows the object, the price, and the discount. Discounts include mainly 20% and 30% off, with a few 40% off prices. I made 3 different recording sheets. One requires just the amount saved, one is for just the final sale price, and one asks for both amounts. I wanted some flexibility in how the cards are used. I also included a 1-page sheet that could be used in notebooks or to project that explains how to find a percent mentally (with multiples of ten).
I used these cards with above level fifth graders as another way to examine a proportional relationship. Under Common Core, they support 7.RP.3. After I used this deck with my students, we moved on to deck #2 (separate listing), that adds the skill of finding 5% mentally, and uses that to find 15%, 25%, 35%, etc.