Ds1 is fairly clever, and takes a lot of his numeracy and literacy with older kids. He has started saying things like "Jamie (not real name) is nearly 8 and can't even do hundreds numbers and doubling yet!"
now, I know for a fact that ds1 is in with the older kids who are having a bit of trouble keeping up, and this is because ds1's behavior is still very immature and he doesn't cope without huge amounts of supervision. But knowing more about maths than much bigger children is making him arrogant.
I have tried telling him that I am sure "Jamie" is much better at listening to the teacher, or being a friend, or reading (and "Jamie" apparently is better at reading) but he has always been fixated on numbers and I'm sure he has focused on numbers and ability with numbers as a measure of worth.
What shall I do?
It is probably worth adding that he is waiting for assessment for autistic spectrum disorder, so answers along the lines of "How do you think it would feel if someone said that to you" are met with blank stares.