You’ll need to use a calculator for this one – but it’s worth it!

- Ask your friend to write down their shoe size – but not tell you.
- They multiply that number by five
- Next add 50.
- Now multiply that number by 20
- Add 1,019.
- Finally, subtract the year they were born.

The number they get it **THEIR SHOE SIZE** plus **THEIR AGE!**

Try it yourself – it really works!

Here’s an example for you:

- Ask your friend to write down their shoe size – but not tell you.
- 6
- They multiply that number by five
- 30
- Next add 50.
- 80
- Now multiply that number by 20
- 1600
- Add 1,019.
- 2619
- Finally, subtract the year they were born. (2000)
- 619

**The first number is his shoe size – 6 – and the second is his age – 19.**

## VERY IMPORTANT

This trick will ONLY WORK until the end of 2019. Next year, if you want to do it, you’ll need to add 1,020 instead of 1,019!