Is this from experience or general "I read that exams got easier" hearsay? I got good coverage of all the topics you discussed (however I'm not sure what "math analysis" refers to). I went through the Scottish system (ending around 2003) but I cannot imagine it was much different/worse in England, NI and Wales and I've no reason to believe they made things easier.
I wanted to say that it is not only arithmetics that is bad, but the whole math field in general. Unlike in cases where a general knowledge of the field is there, but the person can't calculate 2+2 without a calculator.
