Dyscalculia indicates severe deficits in numerical skills. Mathematics involves the understanding of idea of quantity, space, and language which is essential for effectively carrying out numerical computations. A person with dyscalculia, despite average intelligence and good grades in other subjects, tends to underachieve wherever mathematical skills are required.
Some signs may be:

  • Inability to understand numerals and the relationship between them
  • Difficulty in performing mental arithmetic using the four basic operations (addition, subtraction, multiplication and division)
  • Problems in solving arithmetic word-problems.