Arithmetic Operations

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Basic Calculation in JavaScript</title>
    <style>
        div {
            font-size: 25px;
            margin: 20px;
        }

        input[type=text] {
            padding: 5px 10px;
            font-size: 18px;
        }

        button {
            font-size: 18px;
            padding: 5px 20px;
        }
    </style>
    <script>
        function calculate() {
            let a = (document.getElementById("num1").value * 1);
            let b = (document.getElementById("num2").value * 1);

            document.getElementById("sum").innerHTML = a + b;
            document.getElementById("sub").innerHTML = a - b;
            document.getElementById("mul").innerHTML = a * b;
            document.getElementById("div").innerHTML = a / b;
            document.getElementById("mod").innerHTML = a % b;
        }
    </script>
</head>
<body>
    <input type="text" id="num1" />
    <input type="text" id="num2" />
    <button type="button" onclick="calculate()">Calculate</button>
    <div>
        <strong>Sum:</strong> <span id="sum"></span>
    </div>
    <div>
        <strong>Subtract:</strong> <span id="sub"></span>
    </div>
    <div>
        <strong>Multiplication:</strong> <span id="mul"></span>
    </div>
    <div>
        <strong>Division:</strong> <span id="div"></span>
    </div>
    <div>
        <strong>Modulus:</strong> <span id="mod"></span>
    </div>
</body>
</html>
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Result Screenshot(s)

Arithmetic OperationsWorking Sample0