UPDATE!: This easily assembled game now includes a second set of memory cards! The first set are 0-10 numbers and 0-10 objects on the back of purple memory cards (that's the game you already have). The second set are 0, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and corresponding objects on the back of blue memory cards!
This is a traditionally-played memory game that I introduce during my guided math time, then let students play during their workshops. I also use it as remediation for kiddos who are struggling to quickly identifiy numbers during guided math.