Another one, this time (slightly) less dumb. When asking a question with на сколько and a comparative (I.E. How much older are you than me?), I know that the answer is also made using на. And I also know that most of the time, the answer will involve a numeral. But, when it doesn't, what case noun should follow the на? For example, what if I wanted to say "I am older than you by a large amount"? Aside from the fact that I'm not sure how to say "amount" properly in this context, it would be something like "я на болшое номер старше" or would it be locative "я на болшем номере старше" or is it just something totally different? Or is this construction impossible in the first place?
Thanks,
David