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Fact Sheet: Dyscalculia

What is dyscalculia?

My student (or child) has a math learning disability, but no dyscalculia. What does this mean?

This is like saying you have a whole lot of water but no H2O - dyscalculia is the math learning disability.

A dyscalculia diagnosis is made by a neuropsychologist or educational psychologist. Only experts are trained in administering, scoring, and analyzing the many tests needed to diagnose a learning disability.

8% of people have dyscalculia

Dyscalculia and dyslexia are both Specific Learning Disorders (SLDs), a group of learning disabilities that includes dysgraphia, dyspraxia, ADHD, executive function disorders, and other learning differences.

The signs of dyscalculia include persistent trouble at telling time, counting money, remembering basic math facts, or remembering math at all, even after interventions and extra help.

Adults have dyscalculia, too! Dyscalculia is a lifelong condition. It involves differences in writing and processing, mainly in the parietal lobe of the brain.

Can dyscalculics ever succeed in math?


People with dyscalculia can succeed in any math class with the correct support and accommodations.


Sometimes dyscalculia seems hereditary, sometimes it's the unique brain writing of an individual, sometimes it's caused by an accident.

Screeners and classroom performance measures are helpful - for example, most dyscalculics score in the 30th percentile or two grade levels below their peers - but these are not diagnostic tools.