<input type="number" id="number1" placeholder="Enter first number"><br>
<input type="number" id="number2" placeholder="Enter second number"><br>
<button onclick="addNumbers()">Add Numbers</button>
<p id="result"></p>
function addNumbers() {
let num1 = parseFloat(document.getElementById('number1').value) || 0;
let num2 = parseFloat(document.getElementById('number2').value) || 0;
let sum = num1 + num2;
document.getElementById('result').innerHTML = 'The sum is: ' + sum;
}