Questions about Punctuation?

So, I'm writing my essay. And I never know what kind of dashes are supposed to be in numbers. How would you punctuation this sentence?

At the time of their meeting, Wilde was thirty eight years old, and Douglas was only twenty two years old.

I know there is a certain way to do numbers, like you spell them up to 10 or something but I don't....know the exact rules.

Here's another one I can't figure out.

In Queensberry’s many attempts to hurt their relationship, he left his card at a club, and on the back wrote: “For Oscar Wilde, posing as a somdomite[sic]” (Linder).

Since its writing, do I put it in quotes? Should I use the colon? If I use the colon, do I even need the quotes? I'm so grammar stupid.

I would write out numbers properly what ever they are.

I would be tempted to put yours in italics, just to clarify it is something not your own. Although I dont think it really matters.

I got the first part, thanks! but isn't there some funky way to punctuate numbers, with dashes and stuff? Or was I dreaming?

I would be tempted to put yours in italics, just to clarify it is something not your own. Although I dont think it really matters.

What?

Numbers - Not that I know of

What? - Id put

"For Oscar Wilde, posing as a somdomite[sic]"

Into italics (minus quotes). But the quotes can be left if you do not use italics. Thats what Id do whether its right or wrong lol.

With ages, you should use hyphens:

John was twenty-two years old.

Harriet is forty-two.

Because they are compound numbers, or something exciting like that.

See, I knew there was some crazy something behind numbers and punctuation....


Thanks Backo Scocko!

When you spell the numbers 21-99 out, use hyphens (twenty-one; ninety-nine).

That's all I can think of for now! Oh, and also (if you're using really big numbers), please use them in number form! Who wants to read 845,345,789 in words?