<!DOCTYPE html>

<html>

<head>

<title></title>

</head>

<body>

<div id="result">multiply</div>

<div id="result1">add</div>

<div id="result2">subtraction</div>

<div id="result3">exponention</div>

<div id="result4">divide</div>

<div id="result5">modulus</div>

<div id="result6">increment</div>

<div id="result7">decremnt</div>

<script>

var a = 20;

var b = 23;

var c =  b*a;

var d =  b+a;

var e =  b-a;

var f =  b/a;

var g =  b%a;

var h =  b++;

var i =  b--;

document.getElementById('result').innerHTML = c;

document.getElementById('result1').innerHTML = d;

document.getElementById('result2').innerHTML = e;

document.getElementById('result3').innerHTML = f;

document.getElementById('result5').innerHTML = g;

document.getElementById('result6').innerHTML = h;

document.getElementById('result7').innerHTML = i;

</script>

</body>

</html>

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