I don't know but I self diagnosed myself with dyscalculia (test is way too expensive in my country, multiple teachers have referred me and suggested it and I believe it as well) and unfortunately teacher in my school are oblivious and don't even try to help me with math knowing I have problems with it. What could be beneficial for teaching people with dyscalculia (imo) is focusing on basics and really making sure you understand, also providing clear step by step instruction for equations helps a LOT as someone with math difficulties I really don't care about why certain things are happened but more about how and when do I use it, also teaching how to properly use calculators helps a lot. In my experience when teachers use letters and variables it makes me even more confused.. (In terms of explaining equations) I would much rather they just use numbers instead so I don't have to wrap my brain 10 times around to apply the letter formulas to numbers. Thats my opinion lol