function add() { var num1 = parseFloat(document.getElementById('num1').value); var num2 = parseFloat(document.getElementById('num2').value); var result = num1 + num2; document.getElementById('result').innerHTML = 'Result: ' + result; }

function subtract() {
  var num1 = parseFloat(document.getElementById('num1').value);
  var num2 = parseFloat(document.getElementById('num2').value);
  var result = num1 - num2;
  document.getElementById('result').innerHTML = 'Result: ' + result;
}

function multiply() {
  var num1 = parseFloat(document.getElementById('num1').value);
  var num2 = parseFloat(document.getElementById('num2').value);
  var result = num1 * num2;
  document.getElementById('result').innerHTML = 'Result: ' + result;
}

function divide() {
  var num1 = parseFloat(document.getElementById('num1').value);
  var num2 = parseFloat(document.getElementById('num2').value);
  if (num2 === 0) {
    document.getElementById('result').innerHTML = 'Cannot divide by zero';
  } else {
    var result = num1 / num2;
    document.getElementById('result').innerHTML = 'Result: ' + result;
  }
}