Originally Posted by TFCash

You can add a tag to your post which will show a (click here to read more) on the post when its on the front page.

https://en.support.wordpress.com/more-tag/

As for the 3 to 5 posts per page, that is really based on the template that you choose, but each should have a customization spot that will allow you to say how many posts you want per page.

good luck