Numbed!

Numbed! is a middle-grade comedy about two boys who lose their mathematical knowledge to a museum robot. When Logan's class takes a trip to a math museum, his mischievous friend Benedict is sure it will be a boring day, until he discovers a robot and its creator in an off-limits area. The robot proves feisty, and soon both boys get zapped; only later do they realise they left the museum without their math skills. To get back the knowledge they need for school, not to mention buying food at the mall or divvying up dinner at home, they have to return and pass a series of math challenges. Author David Lubar uses the premise to show how useful, and even fun, mathematics can be. The publisher lists the book for grades 2 to 5, and the Mathical Book Prize named it an Honor Book in 2015.