How to change title tags on paginated posts?

I’ve created many post with multiple pages with the nextpage-tag. The problem is that these show up as errors in “Google Webmaster Tools” because of duplicate title tags and meta descriptions.

The urls are like this:

http://mypage.com/mypost/
http://mypage.com/mypost/2
http://mypage.com/mypost/3

all of which have the same title and meta tags.

Is it somehow possible to include the page number to the meta tags?

I’m using the “WP SEO” which surprisingly doesn’t have this feature.

Is “WP SEO” = “WordPress SEO by Yoast”? If so, the plugin has some tags for you:

• %%page%% – Replaced with the current page number (i.e. page 2 of 4)
• %%pagetotal%% – Replaced with the current page total
• %%pagenumber%% – Replaced with the current page number

Just look at the bottom of the page wp-admin/admin.php?page=wpseo_titles, you’ll see. Just try it.