We don’t have these in the US, either. We have an AP or IB system, I was under the AP system. It was a long time ago… but I think I had APs in biology, english, calculus, history. I went to a relatively poor school so we didn’t have enough money to offer many APs, so I took almost all of the ones that were offered.
@meggie @miamimi I took an O’level (the old style GCSE) in maths a year early, and then took 8 GCSEs (biology, science, English, English lit, history, German, music and geography) plus A/S level maths the year after.