ejemplo de strike out, kytyper.com/blog

First, simply "x" through the mistake. For much of the writing done on manual machines, this is a perfectly acceptable solution when that pinky strays to the wrong key. Plus, it gives your writing some character. Embrace the typos!

Another option is to use Bic Wite-Out Correction Tape (or a generic brand of the same item). When you make a typing mistake, roll up the paper so you can easily get to it, apply a piece of correction tape over the mistake and you're good to go.

One last option would be to use old-time correction tabs. With these, you simply place them over the character you'd like to remove and retype with the correct character. A white coating covers up the mistake. I remember using these in my high school typing class!