Mathematics disorder Causes and symptoms The causes of mathematics disorder are not understood. Different manifestations of the disorder may have different causes. Symptoms of the disorder, however, can be grouped into four categories: language symptoms; recognition or perceptual symptoms; mathematical symptoms; and attention symptoms. People with language symptoms have trouble naming mathematical terms; understanding word problems; or understanding such mathematical concepts as "greater than" or "less than." People with recognition symptoms have difficulty reading numbers and such operational signs as the plus or minus signs, or aligning numbers properly in order to perform accurate calculations. Mathematical symptoms include deficiencies in the ability to count; to memorize such basic arithmetical data as the multiplication tables; or to follow a sequence of steps in problem solving. Attention symptoms are related to failures in copying numbers and ignoring operational signs. Sometimes these failures are the result of a person's carelessness. At other times, however, they
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