My boy can't do addition properly yet. ✬

I study French in addition to English. ✬

The set of real numbers is closed under addition. ✬

In addition to being a doctor, he was a very famous novelist. ✬

Do you need anything in addition? ✬

In addition to French, Tom can speak English. ✬

Tom is a good addition to our staff. ✬

In addition to Mary and her new boyfriend, Tom invited three of Mary's ex-boyfriends, without telling her. ✬

This will be an excellent addition to your resumé. ✬

In addition to Tom, three other people were injured. ✬