dyscalculia http://purl.bioontology.org/ontology/MEDDRA/10049669 http://purl.bioontology.org/ontology/MESH/D060705 http://purl.bioontology.org/ontology/SNOMEDCT/55640002 http://purl.obolibrary.org/obo/DOID_12568 http://purl.obolibrary.org/obo/HP_0002442 http://purl.obolibrary.org/obo/NCIT_C97165 https://en.wikipedia.org/wiki/Dyscalculia https://www.wikidata.org/wiki/Q742672 A learning disability involving a math disability can cause such difficulties as learning math concepts (such as quantity, place value, and time), difficulty memorizing math facts, difficulty organizing numbers, and understanding how problems are organized on the page. dyscalculic nonverbal learning disability