I am one of these 'back to basic' parents. Right before we left Texas, my daughter's math teacher at a parent conference told me it didn't make any difference what the answer was as long as she got the process right. I just shook my head. I thought she was kidding, but she wasn't. When we moved up here, I asked her math teacher about that and he said you better have the right answer.
Estimating or probability in math has become a big deal. I think it is the wrong thing to teach.