Suggest the OP ask his Mrs if she could teach my 9 year old son even the most elementary math's there is a war every weekend as the fingers come out for 3+6 he is a brimmingly happy boy who loves school but alas no genius .
Recently he has been moved down a class being 3x the size of an average Thai kid of the same age his classmates are all microdots but he is happy as a pig in **** I can only hope he develops other skills at some stage ????