Why some people can solve math problems easily while others cannot?
The sooner kids stop counting on their fingers, the better they are at math later in life.
Researchers at Stanford University School of Medicine found that when kids begin processing mental math, the brain reorganizes itselfto use its short-term memory center, the hippocampus.
also for math, as for any subject, some people do have a natural talent.
further more math, more than most subjects, is horribly taught and this affects how much people learn.
In my opinion, you can train your brain to do so. Some people are born with the gift of resolving math problems without help. Other people need a fun way to train their brain to do so. Please check this website:
https://www.ixl.com
It will provide you with all the necessary skills to be an expert in math.