This common core resource contains 20 task cards specifically written for and aligned to CCSS 7.NS.2.
In my classroom we use task cards often. I will place them around the room for students to get up and get moving while being engaged in math work.
Each task card is numbered for easy organization and labeled with the CCSS in the lower corner. There is a student recording sheet included as well as the answer key for the cards.
These could also be used at the end of the unit (or throughout the year) in conjunction with other task cards as a review of the number systems unit. Specifically, this is a great resource to use as a review before the common core unit 1 (number systems) assessment I have created. Questions and formats for both are very similar!
More CCSS task cards to come! Check back soon!