See more about Fibonacci at our Fibonacci and Nature page.
The Fibonacci Trick

You start with seven empty boxes:

1 2 3 4 5 6 Total

Ask a guest to choose any two numbers and write them in boxes 1 and 2. Hint: it makes life easier if the numbers are below 10!

The guest then adds boxes 1 and 2, put the answer in box 3.

Next they add boxes 2 and 3 and put the answer in box 4.

Then they add boxes 3 and 4 and put the answer in box 5.

Now YOU write a prediction on a separate piece of paper!

The guest adds boxes 4 and 5 and puts the answer in box 6.

The guest now adds up ALL the numbers in the six boxes and writes the answer in the "total" box.

You show your piece of paper which has the answer already written on it!

Here's how it might look if the chosen numbers are 7 and 4:

1 7 2 4 3 11 4 15 5 26 6 41 Total104

So how did you know the answer was going to be 104 even before box 6 was filled in? Answer - the prediction is 4 x the number in box 5! Here 4 x 26 =104.

The BIG Version!

This trick and many others are explained in the book The PHANTOM X (algebra) There's more about Fibonacci in NUMBERS the Key to the Universe

Start with a row of 11 empty boxes!

1 2 3 4 5 6 7 8 9 10 Total

As before, your guest choses two numbers for boxes 1 and 2, then goes on to fill the other boxes by adding the numbers in the previous two boxes together. You can write the prediction after box 7 is filled in because the total will be 11 x the number in box 7!

Murderous Maths

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This trick and many others are explained in the book The PHANTOM X (algebra)	There's more about Fibonacci in NUMBERS the Key to the Universe

See more about Fibonacci at our Fibonacci and Nature page. The Fibonacci Trick

The BIG Version!

See more about Fibonacci at our Fibonacci and Nature page.
The Fibonacci Trick