how to make the math.random stop?

Im trying to figure out how to make the Math.random stop. I have a confirm statement if the the user gets a write answer, it'll alert and ask to confirm. however, math random keeps asking a new question instead of stopping the script when the user clicks "cancel",also if the answer is wrong it shouldn't ask a new question unless the user gets it right. How do I correct this? (sorry Im a newbie, and thanks!)

<h1>Math Random</h1>
<hr>
<br>
<p id="question"></p>

<script>
    var x = Math.round(Math.random() * 10);
    var y = Math.round(Math.random() * 10);

    var outHTML = "How much is " + x + " times " + y + "?";

    document.getElementById("question").innerHTML = outHTML;

    function getAnswer() {

        if (parseInt(document.getElementById("answer").value) == x * y) {
            alert("Very Good!");
            confirm("Want more?");

        } else {
            alert("Try again!");

        }
    }

</script>

<form>
    <input id="answer" type="number" placeholder="answer here">
    <button onclick="getAnswer()">Submit</button>
</form>