What is dyscalculia? 

Dyscalculia means literally “being unable to calculate”. People with dyscalculia have a severe and  persistent problem with certain basic mathematical skills. This is often connected to other limitations such as spatial reasoning, telling time, lack of insight or problems with spelling. Dyscalculia is indiscriminate of intelligence or education.


  • Numeracy skills significantly deviates from expectations based on age, intelligence and education
  • The mathematics disorder seriously effects general progress at school or in activities in day-to-day life where numeracy skills are required
  • Many mistakes are made in using simple procedures and step-by-step plans
  • The problem is persistent
  • Despite extra aid and attention, the problem will not cease to exit

Possible obstacles 

  • Problems with arithmetic
  • Problems with the sequence of steps to be taken in a strategy
  • Unable to associate with previous knowledge
  • Problems with setting numbers and multiple reversals of numbers
  • Problems with keeping to instructions
  • Problems with immediately recognising the essence of an assignment
  • Slower pace
  • A less active short term memory
  • A less efficient structured long term memory
  • Trouble with monitoring own work and with reflection on own work
  • Fear of failure


picture with a lot of figures and numbers