Raz, a mathematician, is among a cohort of secluded scientists and philosophers who are called upon to save the world from impending catastrophe.

Henri has attended a special school for her learning disability, dyscalculia, but when she is mainstreamed, she finds herself struggling to balance other parts of her life, and not just in math class--a family feud, drama on the soccer team, and a passion for poetry.

On Sunday, Mr. Jenkins welcomes one pig into his pool, and as the week progresses, the number of pigs in his pool increases exponentially, too.

"Olivia and Mei jump in the snow and compare their footprints to figure out who jumped farther and who jumped more times"--Provided by publisher. When Olivia and Mei compare their footprints while jumping in the snow, they realize that one makes fewer (but bigger) jumps, and the other makes more (but smaller) jumps.

Three young, promising students of the math-centric city of Computropolis use mathematics to stop the evil Null Void who has stolen the Divmulti Ray, a laser gun that can multiply or divide anything the ray touches.