How to make a math random quiz

HOW TO MAKE A MATH RANDOM QUIZ USING HTML, JAVASCRIPT, AND CSS

In this lesson, you will learn how to make a simple math quiz. This time, the numbers will change every time you repeat the quiz. The quiz has 10 questions.

I have added some elements in the below code that you won't see in the video. The video explains how you make the quiz. I added question number, a thanks message, and the Repeat button. This quiz is an addition quiz. You can change the addition into subtraction, multiplication, and division. All you have to do is change the plus sign between the 2 variables to whatever sign you want, and where it is shown in quotation marks "+" inside the script.

Code:
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<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title>Math Quiz</title>
</head>
<body>
    <style>
        #frame001 {
            border: 2px solid black;
            background-color: lightgray;
            border-radius: 2px;
            text-align: center;
            padding: 5px;
        }
    </style>
    <div id="frame001">
        <h2>Math Quiz</h2>
        <text>Question: </text><text id="number001">0</text><text> / 10</text>
        <hr />
        <p id="message001"></p>
        <p id="message002"></p>
        <p id="show001"></p>
        <p id="message003"></p>
        <p id="message004"></p>
        <div id="disappear001">
            <button onclick="begin001()">Begin</button>
        </div>
    </div>

    <script>
        var a001 = Math.floor(Math.random() * 10);
        var a002 = Math.floor(Math.random() * 10);
        var a003 = a001 + a002;

        var b001 = Math.floor(Math.random() * 10);
        var b002 = Math.floor(Math.random() * 10);
        var b003 = b001 + b002;

        var c001 = Math.floor(Math.random() * 10);
        var c002 = Math.floor(Math.random() * 10);
        var c003 = c001 + c002;

        var d001 = Math.floor(Math.random() * 10);
        var d002 = Math.floor(Math.random() * 10);
        var d003 = d001 + d002;

        var e001 = Math.floor(Math.random() * 10);
        var e002 = Math.floor(Math.random() * 10);
        var e003 = e001 + e002;

        var f001 = Math.floor(Math.random() * 10);
        var f002 = Math.floor(Math.random() * 10);
        var f003 = f001 + f002;

        var g001 = Math.floor(Math.random() * 10);
        var g002 = Math.floor(Math.random() * 10);
        var g003 = g001 + g002;

        var h001 = Math.floor(Math.random() * 10);
        var h002 = Math.floor(Math.random() * 10);
        var h003 = h001 + h002;

        var i001 = Math.floor(Math.random() * 10);
        var i002 = Math.floor(Math.random() * 10);
        var i003 = i001 + i002;

        var j001 = Math.floor(Math.random() * 10);
        var j002 = Math.floor(Math.random() * 10);
        var j003 = j001 + j002;

        var z = 0;
        z++;
        var y = 0;
        y++;

        function begin001() {
            number001.innerHTML = y++;
            disappear001.innerHTML = "";
            message001.innerHTML = a001 + "<br />" + "+" + "<br />" + a002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input001 /> <button onclick=submit001()>Submit</button>";
        }

        function submit001() {
            var answer001 = input001.value;
            show001.innerHTML = answer001;
            if (answer001 == a003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question002()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question002()>Next</button>";
            }
        }

        function question002() {
            number001.innerHTML = y++;
            message001.innerHTML = b001 + "<br />" + "+" + "<br />" + b002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input002 /> <button onclick=submit002()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit002() {
            var answer001 = input002.value;
            show001.innerHTML = answer001;
            if (answer001 == b003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question003()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question003()>Next</button>";
            }
        }

        function question003() {
            number001.innerHTML = y++;
            message001.innerHTML = c001 + "<br />" + "+" + "<br />" + c002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input003 /> <button onclick=submit003()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit003() {
            var answer001 = input003.value;
            show001.innerHTML = answer001;
            if (answer001 == c003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question004()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question004()>Next</button>";
            }
        }

        function question004() {
            number001.innerHTML = y++;
            message001.innerHTML = d001 + "<br />" + "+" + "<br />" + d002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input004 /> <button onclick=submit004()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit004() {
            var answer001 = input004.value;
            show001.innerHTML = answer001;
            if (answer001 == d003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question005()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question005()>Next</button>";
            }
        }

        function question005() {
            number001.innerHTML = y++;
            message001.innerHTML = e001 + "<br />" + "+" + "<br />" + e002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input005 /> <button onclick=submit005()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit005() {
            var answer001 = input005.value;
            show001.innerHTML = answer001;
            if (answer001 == e003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question006()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question006()>Next</button>";
            }
        }

        function question006() {
            number001.innerHTML = y++;
            message001.innerHTML = f001 + "<br />" + "+" + "<br />" + f002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input006 /> <button onclick=submit006()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit006() {
            var answer001 = input006.value;
            show001.innerHTML = answer001;
            if (answer001 == f003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question007()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question007()>Next</button>";
            }
        }

        function question007() {
            number001.innerHTML = y++;
            message001.innerHTML = g001 + "<br />" + "+" + "<br />" + g002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input007 /> <button onclick=submit007()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit007() {
            var answer001 = input007.value;
            show001.innerHTML = answer001;
            if (answer001 == g003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question008()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question008()>Next</button>";
            }
        }

        function question008() {
            number001.innerHTML = y++;
            message001.innerHTML = h001 + "<br />" + "+" + "<br />" + h002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input008 /> <button onclick=submit008()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit008() {
            var answer001 = input008.value;
            show001.innerHTML = answer001;
            if (answer001 == h003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question009()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question009()>Next</button>";
            }
        }

        function question009() {
            number001.innerHTML = y++;
            message001.innerHTML = i001 + "<br />" + "+" + "<br />" + i002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input009 /> <button onclick=submit009()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit009() {
            var answer001 = input009.value;
            show001.innerHTML = answer001;
            if (answer001 == i003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question010()>Next</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=question010()>Next</button>";
            }
        }

        function question010() {
            number001.innerHTML = y++;
            message001.innerHTML = j001 + "<br />" + "+" + "<br />" + j002 + "<br />" + "__________";
            message002.innerHTML = "<input type=text id=input010 /> <button onclick=submit010()>Submit</button>";
            message003.innerHTML = "";
            show001.innerHTML = "";
            message004.innerHTML = "";
        }

        function submit010() {
            var answer001 = input010.value;
            show001.innerHTML = answer001;
            if (answer001 == j003) {
                z++;
                message003.innerHTML = "Correct";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=end001()>End of Quiz</button>";
            }
            else {
                message003.innerHTML = "Incorrect";
                message002.innerHTML = "";
                message004.innerHTML = "<button onclick=end001()>End of Quiz</button>";
            }
        }

        function end001() {
            message001.innerHTML = "End of Quiz";
            message002.innerHTML = "You scored " + (z - 1) + " out of 10";
            message003.innerHTML = "Thanks for taking this quiz.";
            show001.innerHTML = "";
            message004.innerHTML = "<button onclick=repeat001()>Repeat</button>";
        }

        function repeat001() {
            location.reload();
        }
    </script>
</body>
</html>

If you want to watch the video and see how it is done, you can check it out below.

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