Halloween Math Activities Freebie! I was out shopping last week and popped into JoAnn Fabrics. I found these super adorable spider buttons. LOVE THEM! So, I created a few Halloween Math Activities with this guy. spider math Addition facts game Just for my first-grade friends, I thought I’d make a spider addition activity for practicing addition. Supplies Needed: dice dry erase marker dry erase pocket or laminate plastic spiders or other manipulatives First, you’ll need to laminate the template or place it in a dry erase pocket. If you can find the plastic spiders, that’s great, but if not there are other Halloween themed manipulatives that would work just as well. How to Play: Have the student roll the die