Hi everybody,
Here is something not environment related but more educational IN A FUN WAY. They are called the four fours, and the thing is, you can make any number using the four fours. And you can add, subtract, multiply, and divide, or even make 44 or 444, but you can only use four fours. So, I'll give you the first four.
0=(4x4)-(4x4) or 44-44 or (4-4)+(4-4) or 4-4-4+4
1= (4x4)/(4x4) or 44/44 the slash (/) means divide.
2=4/4+4/4 or 4x4/4+4
3=(4+4+4)/4
that's funny indeed. I assume the usual operations are allowed, including square root and power, otherwise it's just impossible. So here are a few more:
ReplyDelete4 = 4 + (4-4)/4
5 = 4^(4-4) + 4 where "^" means "to the power"
6 = (4+4)/4 + 4
7 = 44/4 - 4
8 = 4^(4/4) + 4 = 4(4+4)/4
9 = 4/4 + 4 + 4
10 = (44-4)/4
11 = 44/(sqrt(4)sqrt(4)) , where sqrt = square root
12 = 4(4-4/4)
It becomes boring at some point ;)