Well.................ummm................
If you're doing it on an iPhone/iPod/iPad, just tap the place where you would type in the numbers, then a keyboard will pop up, and tap the / key.
If you are doing it on a computer, click the place where you type in numbers, and type / button. It works every time!
It's spelled Pi, just for future reference. Pie is the food you eat, Pi is the number you use.
Of all these numbers
2, 5, 9, 11, 13, 14, 21, 22, 24, 25, 29, 30, 32, 33, 36
22 is the median
Well, for girls, it's actually easier, so if you're a girl, you're in luck. It's been scientifically proven that girls are better at math (and pretty much everything else) than boys.
Sorta like if you chopped an apple into 1000 equal pieces, and had six of those pieces.