[organicfiction]

Hey gilbs your problem comes from the way flash handles data from textfields. Your code is solid enough so it should work if you change it abit like this:

start_btn.onRelease = function () {
	var ran1=Math.ceil(Math.random()*9);
	var ran2=Math.ceil(Math.random()*9);
	num1_txt.text=ran1;
	num2_txt.text=ran2;
	var answer = ran1 + ran2;
	answer_txt.text = ran1 + ran2;	
};

check_btn.onRelease = function () {
	if (answer_txt.text == userAnswer_txt.text){
		trace ("correct");
	}
	else{
		trace ("incorrect");
	}
};