## 內容簡介

內容簡介 Race the clock to solve 70 fun puzzles with grade-school math--and genius logic Welcome, brave math wizard, to the world of area mazes. These clever grids of squares and rectangles are more than meets the eye. Can you find the missing value--using only your powers to add, subtract, multiply, and divide? Just remember: Area = Length x Width Too easy? Race the clock Puzzle master Naoki Inaba has included three target times for every maze. But don't worry if you get stuck sometimes . . . just keep at it, and you'll get better and better. Soon, you'll be amazing

## 作者介紹

作者介紹 Naoki Inaba has invented over 400 new types of puzzle, and also writes sudoku and other popular puzzles for magazines in Japan, where he has published several books of area mazes for children and adults. Ryoichi Murakami is the founder and CEO of El Camino, a premier cram school in Tokyo. Many of his students go on to elite schools such as the University of Tokyo, and compete in the International Mathematical Olympiad. In addition to teaching at El Camino, Murakami is active in publishing, works as a puzzle maker, and writes questions for the Olympiad.