This PDF file includes 10 cocoa mugs numbered 1-10. The objective is to put the correct number of mini-marshmallows that the mug says. If the mug says 3, put 3 mini-marshmallows in the cocoa. The mugs are colored so you can see where the "cocoa" is so the students know where to put the marshmallows. You, however, have to either buy mini-marshmallows or substitute them with something more easy such as the holes from punched paper!
Cut out these 10 mugs and put them on a poster board or leave them as is. I would recommend laminating them, though. Use this for this winter as a math center activity. Enjoy!