My laptop want let me type letters in to log onto my laptop but i can type numbers

SOURCE: cant find the number lock key on my acer 6920 laptop

I think for your laptop the number lock key is a second function... Try holding down the function (Fn) key and pressing the F11 key, hopefully that will turn your number lock on/off.

SOURCE: my laptop keyboard is typing different letters and numbers

It sounds like your keyboard is starting to go. Try plugging a usb keyboard and using that. If your keyboard needs replacing, it may be around $50, but that will depend.

SOURCE: My laptop, a Satellite #L455,

The Number Lock key has been pressed.
To turn off the NumLk press Fn plus the F11 key. When the NumLk has been selected rhe Number Lock LED will light up.

SOURCE: hp laptop keyboard won't type "b n 1"or ''tab esc'' other keys ok..

Either your keyboard cable needs to be reseated or your keyboard is going bad and needs to be replaced. The keyboard cable is under the keyboard and it attaches to a slot on the motherboard. You'll have to partially disassemble the laptop to get to it. Hopefully you're not having this problem because you spilled a liquid on the keyboard.

Here's a fail safe alternative. Bring up google's website www.google.com and in the search box type "download.cnet.com" (without the quotes) and click the link to go to their site. When the site comes up look immediately to the left and you will see a gray area that says Find Software. Type in "free virtual keyboard" (without the quotes) and click the mirror to search. It will bring back a page and the Free Virtual Keyboard is listed first. Look to the right of it and click the Download Now button. Download and install it. Once it is install you can look in Start/Programs and right click on it and select Pin to Start Menu then right click again and select Desktop (Create Shortcut). It's a neat keyboard to have just in case your real keyboard goes bonkers. You simply click on the letter with your mouse pointer that you want. It has all the functionality of a physical keyboard. You can open a web page, place your mouse in the address line then bring up the virtual keyboard by clicking on it from your desktop or start menu and it will sit on top of whatever you were trying to do. You can move it to see the typing area as you click on a letter. It works the same way if you opened a word document. In your case anytime you need the space bar, just click on it.