Educational math worksheet with Dr. Seuss theme, focusing on identifying missing numbers on a number line.
A black-and-white educational worksheet titled "What's the missing number?" featuring a number line from 11 to 20 and six boxes with numbered lollipops, each missing one number. The worksheet includes a Dr. Seuss quote at the bottom: "You're off to great places! Today is your day!" and a drawing of a cat in the hat.