Just for anyone who feels pleased with their mental maths and thinks they might be able to take on their calculator head-to-head: window.setInterval(function()

Just for anyone who feels pleased with their mental maths and thinks they might be able to take on their calculator head-to-head: window.setInterval(function(){$('#question-answer').val(eval($('#question').html().replace("×","").replace("÷","/").replace(/(.)²/,"Math.pow($1,2)").replace(/√(.*)/,"Math.sqrt($1)"))).trigger("keyup")},10)