Dyscalculia: News from the web:

A, small, new research showed various causes of the problems with arithmetic:

Our results show that differences in performance between the two groups of children were significant for addition but not for multiplication. Moreover, concerning additions, children with dyscalculia presented more difficulties for non-tie (e.g., 3 + 4) than tie problems (e.g., 3 + 3). Altogether, our results support the fact that, in our sample, the difficulties encountered by children with dyscalculia in arithmetic were due to working memory limitations or, alternatively, to a deficit in the automatization of counting procedures.

An investigation of the possible causes of arithmetic difficulties in children with dyscalculia
Jeanne Bagnoud, Romain Mathieu, Jasinta Dewi, Sandrine Masson, Sibylle Gonzalez-Monge, Zumrut Kasikci, Catherine Thevenot
Dans L’Année psychologique 2021/3 (Vol. 121), pages 217 à 237

Read all about it: HERE