When a robot at the math museum zaps their math skills, sixth-grader Logan and his mischievous friend, Benedict, must pass a series of math challenges to retrieve their knowledge.

Chirpy the chick learns that music is math and songs can solve noisy problems.

Horrible Harry must defend his reputation as a detective by cracking the secret code of Mrs. Funderburke's lunch prizes.

When Amy's puppy runs away, the kung fu students make a bar chart showing places the dog is most familiar with and how often she has visited them in order to determine the probability of where she might be.

For having skipped the school field trip, Dee, Hector, and Terrence must join the mathletes team, but as they are poised to beat the undefeated champions, secret crime fighter Lunch Lady discovers something strange about the opposing team.

The students of Sifu Faiza's Kung Fu School use their knowledge of fractions as they try to discover what happened to Leung Jan's long-lost healing formula.

When Olivia, Mei, and Manny go apple picking, they decide to sort apples by color since they each like a different kind.

In ancient India, a boy named Bhagat travels to the rajah's city, hoping to ensure his family's prosperity by winning a place at court as a singer. Includes author's note about binary numbers.

Annika hopes to change her best friends' hatred of math by winning a Sudoku contest, but she does not realize how important their lack of mathematical ability is until they make a mistake at the school carnival.

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.