I use this as a review within my math centers for students to quickly and visually identify teen numbers using tens-frames. I incorporate this game as an introduction to manipulating numbers; it is a great review of decomposing numbers as well! I hope you enjoy, my students love the game memory!
DIRECTIONS: Print on card stock and/or laminate. Cut on the dotted lines and laminate. Students will place cards face down and take turns flipping over two cards. If they match they keep their cards, if they do not the student must turn the cards back over and wait for his/her turn to come back around. The student with the most matches wins!