The merits of more maths is back on the agenda after Rishi Sunak gave a speech today confirming his plans to ensure every pupil in Britain studies the subject up to the age of 18.

 Speaking at the London Screen Academy this morning, Sunak warned that the UK is one of the least numerate countries in the developed world, adding: “We’ve got to start prizing numeracy for what it is – a key skill every bit as essential as reading.”