A learning disability in math (computation, word problems, reasoning).

Found on https://www.ldaminnesota.org/learning-disabilities/about-learning-disabilit

A severe difficulty in understanding and using symbols or functions needed for success in mathematics.

Found on http://www.ldonline.org/glossary

[

*n]* - impaired ability to learn grade-appropriate mathematics

Found on http://www.webdictionary.co.uk/definition.php?query=dyscalculia

Strictly speaking, a less than total defect of number processing, with both acquired and developmental forms. [There is a longer discussion of the brain's involvement in numeracy in our e-paper on `The Psychology of Numeracy`.]

Found on http://www.encyclo.co.uk/local/20437

Dyscalculia: A specific developmental disability affecting a person's ability to conceptualize and perform mathematics. Mild cases can often be compensated for with use of a calculator, but those with severe dyscalculia will need special education services.

Found on http://www.medterms.com/script/main/art.asp?articlekey=11181

Difficulty in performing simple mathematical problems; commonly seen in parietal lobe lesions. ... Origin: dys-+ L. Calculo, to compute, fr. Calculus, pebble, counter ... (05 Mar 2000) ...

Found on http://www.encyclo.co.uk/local/20973

*noun* impaired ability to learn grade-appropriate mathematics

Found on https://www.encyclo.co.uk/local/20974

dyscalculia Disability with respect to using mathematics. Although this disorder is common, it is poorly understood.

Found on http://www.wordinfo.info/words/index/info/view_unit/1124/4

Type: Term Pronunciation: dis′kal-kyū′lē-ă Definitions: 1. Difficulty in performing simple mathematical problems; commonly seen in parietal lobe lesions.

Found on http://www.medilexicon.com/medicaldictionary.php?t=27190

A severe difficulty in understanding and using symbols or functions needed for success in mathematics For more information, go to Dyscalculia.

Found on http://www.ldonline.org/glossary

Dyscalculia is difficulty in learning or comprehending arithmetic, such as difficulty in understanding numbers, learning how to manipulate numbers, and learning facts in Mathematics. It is generally seen as a specific developmental disorder like dyslexia. Dyscalculia can occur in people from across the whole IQ range, often, but not always, involv...

Found on http://en.wikipedia.org/wiki/Dyscalculia

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