IPad 2 can't pair with iMac wireless Keyboard (late 2009)

Question

ipad 2 will not pair with wireless keyboard that came with iMac late 2009.
I've read countless ways to do this in support forums, but no matter what I do, I can not get the ipad 2 to work with my wireless keyboard.
In settings>bluetooth, I UNCHECKED discoverable for the keyboard, as I've read many times.
I then clicked the minus button and a box came up ( I can not recall what it said but it basically asked if I wanted to ?remove? the device, and I clicked OK.
Then, I went to the iPad 2, into bluetooth, and went to pair it. The keyboard was discoverable, and then something with a code came up on the iPad screen, and I clicked OK.
NOTHING happened, even though it said it was connected.
I looked at my iMac screen, and there was something there with a code that had to be typed in? This is where I get confused. I disconnected the keyboard, yet I got a box on the iMac screen, asking me to put the code in to pair it with the ipad 2 !  I figured it must be a mistake, because I disconnected the keyboard from the imac.
well, I tried to key in the code and it worked on the IMAC...which, technically, it should not have been able to do.
I've watched countless Youtube videos, read through the support forums here and...I can't find anyone with  this same problem and so, I toss it out to you all in Apple Support.
What could I be doing wrong?? 
Thanks.

Answer 1

Spoke with an Apple Care Tech today on this issue:
Apparently, this is how it works : First, you have to go to BLUE TOOTH and when you see your keyboard, delete it or remove it, and then shut down the computer.
Then, you must go to your iPAD. (initially, your blue tooth on iPAD should be TURNED OFF- now, turn it ON.
Press and hold the button on the right side of your keyboard for 5 seconds, and watch for it to blink then go off.
Next, push the button on the side of the keyboard again, it will go on.
On your ipad, under Blue Tooth, you will see some numbers and it might say NOT CONNECTED. Click that.
Be patient and then under that, something like YOUR NAME KEYBOARD will appear. Click it and it will give you a code to type in. Type it in. Be patient. Might not take the first time. Do it again. When the code comes up again, type it in again.
This worked for me as suddenly the keyboard was paired with the iPAD 2.
When you want to unpair it, turn blue tooth on the  ipad OFF. Turn your computer back on. Initially your screen will come up to sign in (if you have it set up that way). In a few seconds, you will see that your keyboard has reconnected to your Mac. Sign in and that's that:)