# Math Tricks for Kids

*Alright math magicians..., *You're at the right place for more math tricks for kids. We will continue adding more tricks so be sure to check back often.

## The 6174 Trick

**Math Skills:** This trick is good for helping students practice *four-digit subtraction*.

**What You Need: **Piece of paper and pencil

**Performing the Math Trick**

- Have someone choose any four-digit number. (At least one digit should be different from the other digits)
- Arrange the digits in order from
*largest **to smallest* and write that number down.

**Example**

- The person chooses the number
**4,081** - Rearrange digits in order from largest to smallest:

**8410**

- Now have them
*reverse* the digits of this number and *subtract* it from the last number they wrote down.

- After they subtract and get the answer, have them arrange the numbers from greatest to least if they are not already.
- Now have them subtract the reverse of this number from itself (same procedure as above).

- Keep repeating these same steps and they will soon arrive at the
**magic number: 6174! **

Not at the Magic Number yet, so they keep going.

And just like *magic.....they will reach the Magic Number! (See below)*

Pretty Cool! It works every time.

Note: It might be a good idea to make sure they are doing the subtractions correctly, otherwise they may not get to the Magic Number.

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