Print this on colored paper, cut words apart and place word cards in envelopes or plastic bags. Give one envelope to partners or math teams. Ask students to take a look at all the words and come up with a way to sort the words. Students will figure out that the four categories are: add, subtract, multiply and divide. All the other words signal one of the four mathematical operations. This is a hands-on on that can be used as a team building activity that I usually use in the beginning of the year to encourage students to work together.