Numeracy is definitely associated with different brain regions than just reading. See, e.g. https://www.sciencedirect.com/science/article/pii/S1053811919300011

Numeracy is definitely associated with different brain regions than just reading. See, e.g. https://www.sciencedirect.com/science/article/pii/S1053811919300011 https://www.sciencedirect.com/science/article/pii/S105381191... (Dehaene also has a book, “The Numbet Sense”)