Im crap at math, but annoyed at why. Read about math teaching, and what I found was that there's nothing that correlates with math ability except interest and encouragement (and general iq). There's no genes, brain scans, blood tests, or behavioral signs at preschool age that can predict math success. Teacher ability and enthusiasm likely plays a role.
I believe the opposite when it comes to 'behavioral signs at preschool age' .. I think a child natural inclination towards 'math like' sciences is visible very early
