Harley Harrison, the biggest tattle-tale and best math student in second grade, meets his match in both areas when Emma Jean Smith joins him Mr. Hall's class.

When the teacher tells her class that they can think of almost everything as a math problem, one student acquires a math anxiety which becomes a real curse.

Having lived in a monastery since childhood, away from the violent upheavals of the outside world, Raz becomes one of a group of formerly cloistered scholars who are appointed by a fear-driven higher power to avert an impending catastrophe.

Waking up one morning to find a talking cat on his head, Ethan is informed that the cat will not leave until he - Ethan - wins a game of probability.

Peg and Cat decide to open a pizzeria using Peg's knowledge about fractions to best serve the customers.

Fourteen-year-old India-born math prodigy Rumi Vashey becomes the object of her parents' campaign to make her one of the youngest students ever to attend Oxford University, until she rebels against her parents' expectations to seek out friendship and romance.

When Aunt Adelaide sends thirteen-year-old cousins Ivan and Daphne on a treasure hunt in the rain, they never expect to stumble into a whole new world where words and numbers run wild.

When his Chinese grandmother comes to live with his family in England, an eleven-year-old aspiring comic book artist has to share his bedroom with Nai Nai, who does not speak English, but they soon share a bond through math and art.

While grieving the death of her grandmother in 1959, teenager Anna is torn between her aspirations to study math in college and her family's expectations that she will marry and become a homemaker after high school.

Math-genius mercenary Cas Russell has stopped a shadow organization from brainwashing the world and discovered her past was deliberately erased and her superhuman abilities deliberately created. And that's just the start: when a demolitions expert targets Cas and her friends, and the hidden conspiracy behind Cas's past starts to reappear, the past, present, and future collide in a race to save one of her dearest friends.