Asked about his greatest regret since coming to office in 2010, he said: “When you get into office that’s your opportunity to take some really big decisions. And we did take some big decisions because then you’ve got a few years to see them played out. “But actually I look back and think there’s even more we could have done to fix some of the economic problems and I want to go on therefore taking decisions that will help create jobs. If anything, it’s like I wish we’d done even more.”

Mr Osborne defended the arguments that occur during Prime Minister’s Questions as “passion” and also ducked a simple maths question from seven-year-old Sam Raddings, who asked the chancellor what seven times eight is.

Mr Osborne replied: “I’ve made it a rule in life not to answer a whole load of maths questions.”