Our Number Line Flips! are a fun way for students to practice identifying missing numbers on a number line! PDF download includes 9 different number line cards with colorful numbers 0 - 10 designed to look like different animals. Each number line card can be used to create 4 different number line flip cards where students must identify the number that comes before, between, after, or before and after a given number. Also included is a center cover sheet, direction card, 4 different worksheets for independent practice, and a detailed assembly guide.