Cafodd dau TGAU newydd, sef Mathemateg a Mathemateg Rhifedd, eu cyflwyno i'w haddysgu am y tro cyntaf ym mis Medi 2015. Y canlyniadau a gyhoeddwyd heddiw oedd canlyniadau'r disgyblion hynny a wnaeth sefyll yr arholiadau ym mis Tachwedd y llynedd.
Two new GCSEs in mathematics and mathematics numeracy were first introduced for teaching in September 2015. The results released today are for those pupils who took the opportunity to sit the exams early in November last year.