Boo! There is a mystery behind every door of the creepy haunted house. Luckily, algebra will help you solve each problem. By using simple addition, subtraction, mulitplication, and division, you'll discover that solving math mysteries isn't scary at all -- it's fun!

Building serious math skills has never been so much fun!

A meditation on the beauty and meaning of numbers, exploring mathematical equations, describing some of the mathematical discoveries of the past millennia, and pondering philosophical questions about the relation of numbers to the universe.

Famed puzzle expert explains math behind a multitude of mystifying tricks: card tricks, stage "mind reading," coin and match tricks, counting out games, geometric dissections, etc. More than 400 tricks. 135 illustrations.

A fun way to combine math and reading. Students will build math skills as they solve the mysteries.

Jeffrey Bones doesn't like math tests--especially when he forgets to study for them. Now his test is missing. Can he solve the mystery of the missing test and get an Excellent grade?

Intriguing math practice pages that reinforce skills in place value, odd and even numbers, addition and subtraction, and multiplication and division facts. Students solve problems and then use a key to color and reveal a mystery picture. Riddle clues on each page add to the fun! Unique and intriguing mystery format engages all learners. Self-checking activities encourage independent practice. Gives students the repeated math practice they need. Meets NCTM Standards!