This trick uses simple math to read your mark's mind. This is a great trick for kids, since doing it a few times for an adult would likely give it away.

You will need:

- A brain

- the ability to do simple addition and subtraction

### Supplies:

## Step 1: Step 1

You will ask your target to think of a number. It can be any number , but forewarn them that picking complicated numbers(decimals, fractions) will yield complicated math problems.

## Step 2: Step 2

In Step 2 you ask your target to multiply the number they picked by 2.

## Step 3: Step 3

In Step 3 you will ask your target to add 10 to their current total.

## Step 4: Step 4

In Step 4 you will ask them to divide their current total by 2. If they've got themselves into a mess at this point, just start over.

## Step 5: Step 5

We're almost there. In Step 5 ask them to subtract the **original number** they picked from their current total.

## Step 6: Step 6 Finally!

In the final step you politely tell them the number they have in their mind right now is **5**.

## Step 7: The Trick

This trick is extremely simple in that you have total control on the outcome.

The secret lies in Step 3 where you ask them to add a number.

You can pick any number divisible by 2 to be added. **The final answer will always be the number you asked them to add in Step 3 divided by 2.** In this case I asked you to add **10** to your total, hence your final answer was **5**.

Good luck and have fun with this.

## 41 Discussions

10 years ago

Hello, and welcome to the Instructables community! It's great that you've decided to tell the world about something you've made by publishing an Instructable. We just wanted to let you know that your project still needs a little more work if you want it to be well received on Instructables. Projects that don't include certain basic elements tend not to get the attention that they deserve, and so we'd love for you to check out the list below of what makes a successful Instructable. Successful projects on Instructables include: - clearly written details of a finished project with instruction - as many steps as are necessary to explain your project - clear images that you took of your project for most, if not all of your steps - an intro image - proper spelling and grammar - appropriate cautions or safety considerations I'll give you another opportunity to make any final changes to your project before we publish it. Once you're all set to go, please republish your project and send me a quick comment letting me know that you've made some changes. I'll give it a quick final check to make sure you're on the right path, and then remove this note. Thanks for your submission and we hope to see your project published soon!

5 weeks ago on Step 7

Just so you know, the image and the text on the last step are different. If you were to follow the instructions in the image, you would get -5. If you followed the instructions in the copy, you would get 5

6 months ago on Step 6

That Answer Is Not Correct...

It IS NEGATIVE FIVE. " - 5 "

6 months ago on Step 6

It Is - 5. NEGATIVE 5

6 months ago

-5

Question 1 year ago on Step 6

my answer is not corect

2 years ago

hey guys, I choose 6, nvr got it right with 5.pls

Reply 2 years ago

6x2=12

12+10=22

22/2=11

11-6=5 !!!

2 years ago

it is just half of the number in step 3

2 years ago

It's five bOi @baileyS19

2 years ago

haha you got it wrong if the subject choses 12 than the final answer is 6 booom

Reply 2 years ago

Kid you got it wrong

Reply 2 years ago

It's 5

12×2=24+10=34÷2=17-12=5

Reply 2 years ago

12+12=24.

24+10=34.

34÷2=17.

17-12=5.

Booom

2 years ago

WHF

2 years ago

Hey guys! So I've known this trick for a while, and I've always known that the answer is always half the number you added, but why is this?

2 years ago

Are there any other tricks

2 years ago

dont worry my calculations were wrong

3 years ago

great

3 years ago on Introduction