Learners in Wales are already expected to make progress in numeracy and literacy after the age of 16 through the Skills Challenge Certificate, GCSE resits or an Essential Skills Wales qualification.
Disgwylir eisoes i ddysgwyr Cymru wneud cynnydd mewn rhifedd a llythrennedd ar ôl 16 oed trwy'r Dystysgrif Her Sgiliau, ailsefyll TGAU neu gymhwyster Sgiliau Hanfodol Cymru.