Question

add appropriate question tag for these children are not naughty​

Answer 1

Explanation:

these children are not naughty , do they?

the question is already in negative so the question tag must be in positive

Answer 2

Add appropriate question tag:

Question: These children are not naughty.

Answer: These children are not naughty. Are they?

The sentence was negative , so the question tag must be positive with the same helping verb i.e. are .