Grab some newspaper grocery ads and get ready to do some meal planning with your students! I like to collect ads from the Sunday papers for a couple of weeks before Thanksgiving. This is a fun way to practice using decimals (adding and/or multiplying money) in a real-life situation, as well as estimating. I always enjoy listening to how my students justify their food selections and if things are reasonable!
I find this activity is a great partner project, but could be done individually. It creates a lot of awesome math talk!