I Have Who Has Mental Math Card FUN GAME TEACHING- I have... Who has...? Base Ten Representations is a fun way to get the entire class involved with mental math. TEACH AND REVIEW -This help the students increase their visual recognition of Base Ten representations GREAT TOOL FOR MATH CENTERS- Uses a unique approach to reverse cognitive thinking to verify basic math logic within the learning process EASY SORTING -This 4-color packaging on blister card has a flying saucer hole for easy hanging. Instructions printed on back of blister card. CONTENT INCLUDES- 36 Cards in a reclosable tuck box