There are two things I want my students to know backwards and forwards before leaving the 7th grade. Those two things are adding and subtracting integers and equations. If they can do those two things they will be successful in 8th grade. (I didn't mention multiplying and dividing integers because my students usually use those rules when adding and subtracting integers!)
One of the many games I use throughout the year is "Can I Have Your Number?". I use this game while teaching the students how to add and subtract integers and as a review throughout the year. I also have a station setup for this game.
Blog Post: http://www.dowegetagradeforthis.com/adding-and-subtracting-integers-can-i-have-your-number/
Download includes 12 PDF pages and a SMART Notebook file