Mathematics

Mathematics was always my favorite lesson during my studies both at university and high school. I find it amazing and mysterious.
If you have 5 minutes please have a go, and see the result!

Here are the steps:
1. Take a calculator
2. Write down the first 3 digits of your phone number (Don’t use the area code)
3. Then take this number and multiply by 80
4. Add 1
5. Multiply again by 250
6. Now take your last 4 digit of your phone number and add to this sum
7. Add the sum again this last 4 digit of your phone number
8. Subtruct 250
9. And finally divide by 2
10. That’s the result!