Activities and games which use dominoes to reinforce basic arithmetic skills are presented. Instructions and materials are provided for the activities and games, most of which involve addition and subtraction. Other skill areas which are covered include recognition and matching of domino patterns, multiplication, and division. A seven-item list of resources cites two contact persons, one journal article, and four books. Two reproducible pages provide examples of 55 dominoes, with patterns ranging from zero through nine spots on each half of the domino. (DC)