Actually... I'm now wondering how to express this idea to you. When I was hearing math lesson, I suddenly came up with this. Making numbers with The Numbers, like this :

• 1=16-15
• 2=8÷4 (or 16÷8... or... √4?)
• 3=23-16-4
• 4 is one of the numbers (or you can make it by 16÷4)
• 5=4-15+16

So can you understand this? Like this I made natural numbers 1 to 20 :P But while making this, I think people won't like this when I introduce this idea because there aren't many people who like math :P (If I talk about this to my friends, they'll say "ARE YOU CRAZY!?")... But I hope you like it!!!:)

I wonder if I have to delete this or not: You have to use each number only once!

- SunHwa:D talk blog contribs 13:22, August 8, 2010 (UTC)