Predict Sum of 5 Digit Numbers Math Trick

Magic Addition Trick: Predicting Sum of a series of 5-digit numbers  

Ask someone to write a number, say a 5-digit number. (Can be a 2-digit.....3-digit.....4-digit....etc...…).

Newspaper Prediction Trick

This newspaper prediction trick works on a little known principle. You rarely see it written up which is a shame as it makes for a quite mystifying fast impromptu magic trick.

Magic Number Nine Math Trick

 The Magic Number Nine

The effect:

In this mental magic trick you will confuse the skeptic in your audience by correctly predicting the result of a very complex series of calculations and then revealing your prediction in an extremely unusual way.

Age Prediction Math Trick Magic Age Cards

Tell the age of people (between 1 and 80) from the numbers RED or BLACK they pick.

This is an improved version of traditional ”Magic Age Cards". The introduction of red and black numbers allows a larger range of numbers (80 instead of 63) using fewer cards (just 4 cards instead of 6).

Leapfrog Addition of Fibonacci Sequence

Leapfrog Addition of Fibonacci sequence and the Golden (Ratio) prediction

This trick combines a quick mental calculation with an astonishing prediction.

The Fibonacci sequence is a series of whole numbers in which each number is the sum of the two preceding numbers. Beginning with 0 and 1, the sequence would be 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233… etc.

Speed Addition Left to Right Approach

Most of us are taught to do math on paper from right to left. And that's fine for doing math on paper. But if we want to do math in our head (even faster than we can on paper) there are many good reasons why it is better to work from left to right.After all, we read numbers from left to right, we pronounce numbers from left to right, and so it’s just more natural to think about (and calculate) numbers from left to right. When we compute the answer from right to left (as we probably do on paper), we generate the answer backward. That’s what makes it so hard to do math in our head.

Missing Digit Math Trick

The Missing Digit Trick!

Ask a friend to secretly write down ANY number (at least four digits long). e.g. 78341.

Ask the friend to add up the digits... e.g. 7+8+3+4+1=23.

... and then subtract the answer from the first number. e.g. 78341 - 23 = 78318

Your friend then crosses out ONE digit from the answer. (It can be any digit except a zero) e.g. 7x318