Decimal.Round() or Math.Round()?

>I can't seem to find a good method for rounding and padding numbers. For example:
>
>1 becomes 1.00
>2 becomes 2.00
>1.1 becomes 1.10
>1.123 becomes 1.12
>1.125 becomes 1.13
>1.126 becomes 1.13
>
>
>There has to be something built-in to do this, right? Currently I am manually parsing the digits and it's painful. Decimal.Round won't pad, so 1 will stay 1, and not become 1.00.
>
>Thanks!