Jessica is a worrier. She worries about everything, and that includes what to bring to class for 100th Day. Nothing she can think of seems right. 100 ice cubes? Too melty. 100 marshmallows? Too sticky. 100 toothpicks? Too pointy. Come count, add, and multiply with Jessica as she, with the help of her family, finds the perfect answer to her 100th Day worries.
Margery Cuyler has written stories ever since she learned how to write. A children's book editor and author for more than twenty years, she now devotes most of her time to writing. Her many children's books include 100th Day Worries, illustrated by Arthur Howard, and The Biggest, Best Snowman, illustrated by Will Hillenbrand. Margery lives with her family in Princeton, New Jersey, in a house that's said to be haunted by a ghost!
Arthur Howard is the illustrator of Goatilocks and the Three Bears by Erica S. Perl; Noodle & Lou by Liz Garton Scanlon; the Mr. Putter & Tabby series, Gooseberry Park books, and Motor Mouse series by Cynthia Rylant; and his own picture books. He has also coauthored and illustrated many books of humor for adults and appeared for seven seasons in the PBS math-oriented production Square One Television. He lives in New York City.