https://wikipedia.org/wiki/Dyscalculia https://wikipedia.org/wiki/Dyscalculia -- from the article: Of course, some kids do have clinical learning disabilities

https://wikipedia.org/wiki/Dyscalculia https://wikipedia.org/wiki/Dyscalculia -- from the article: Of course, some kids do have clinical learning disabilities that are not caused by anxiety, cultural myths, or poor teaching. Developmental dyscalculia, a clinical term for someone who has a math-related learning disability, affects about 3 to 7 percent of the population. This is the lesser-known analog of dyslexia, a learning disability related to reading, and the two conditions often occur together. --