I remember my son, who is 14 now, doing that with the math problems I asked him. I know he did this before he started kindergarten at 5. He has always liked to give me answers that were correct but either different than what I expected or he solved the problem in a way I had never heard of. He has dysgraphia and learned to do a lot of mental math so that he can get by with the least amount of writing and still get the correct answer. He can usually solve problems faster than I can since I was taught to write everything out and it slows me down.
He could do math but he liked reading and science more than he liked math. He asked a lot of questions until he realized he could find better answers on the internet. Now instead of asking me questions that I can't answer he tells me about the interesting things he read about and he wants to discuss them. I don't have to have all the answers now, just an opinion.
He always had trouble sleeping because he couldn't turn off his mind. He read for hours every day when he couldn't sleep.
