英文問題一問..

There's is something wrong with your question grammatically.

You are not very good at maths, aren't you?
If you have 'you are not very good at math,' you don't need, 'aren't you.'
And why would you make math plural? It's a subject, and it shouldn't be capitalized, it's not even a proper noun.

You can say:
You aren't very good at math?
When you're asked this question, you would say, 'no, I am good at math,' by saying yes, you are agreeing with the statement that you aren't good at math

2008-01-26 05:01:38 補充：
Another way of phrasing this question may be:You are strong (or good) in math, aren't you?Then, you would say, yes, I am good (or strong) in mathORAre you good in math?Yes, I good in math

題目應該是 : You are not very good at Maths, are you?
你數學唔叻 ,係嗎 ?

或者你可以寫成 Are you not very good at Math(s) ?

但無論你問題 係用一個負面 或是 正面的方式去問 , 答法都是一樣
Yes , I am good at Math(s) .
No ,I am not good at Math(s).

Are you using question tag? I think there's a problem with your question. You should put it like this: You are not good in Maths, are you? The assumption is that you are not good in Maths. On the contrary, if the assumption is that you are good in Maths, the question should be:'You are good in Maths, aren't you?'

And the way you answer is correct.

系牙
其實你想問咩嫁???