iPad and Contacts

Try typing the number in the empty phone field, then changing the field label by touching the label.

There should always be a blank box to type a number into in addition to what you already have.

Just tap on the label e.g. iPhone and up oops a list of other types of numbers. There should always be at least one empty phone field in Edit mode for you to add another number.

Copy the photo, and paste it into the email.

If you have a file open in an app like Air Sharing, for instance, you should have an option to send it via email attachment.