Math Tricks Page



Number and Computational Tricks

Judge Handley Mindreading Trick

The Dictionary Trick

General MacArthur's Favorite Number Game

Interactive version of MacArthur's Trick

Wrecked Angle -- Extra Square Inch

Optical Illusions

Abbott and Costello's trick: 7x13=28

Mobius Strip

Mobius Card -- An Impossible Shape!

Phone Number Trick

Card Tricks

100 Pennies Trick

Tearing Paper in Half

Pepper Problem (the missing dollar)

Twenty Objects Trick

Interactive version of Twenty Objects

What's Your Favorite Class?

Guess a Birthday

Interactive version of Guess A Birthday

Cow Problem

Money is Irrational

Best Year of Your Life

April Fool's Trick

Presidential Prediction!

Invisible Dice

Snapping Your Fingers

Finger Multiplication

How Smart is your Right Foot?

Quadratic Expression Trick

One of Einstein's Favorite Puzzles

Math Magic Tricks by Martin Gardner

Mathemagical Black Holes

The Hole in the Paper Trick

Toilet Paper Tube Tricks by Martin Gardner

Salary Problem

Your Age by Chocolate

Your Age by Eating Out

The Bellman Problem
(the missing dollar)


Psychological Forces

Roman Numeral Trick

Guess the Month

Favorite Role Model

2011 Trick

The Vanishing Man

the $3.41 Challenge -- Bar Bet

Balancing Nails

Who Picked the Pencil?

What's Your Wife's Name?



Send any comments or questions to: David Pleacher