Back to Tutorial Paste Your Code here! <html> <head> <script> function dis(val) { document.getElementById("result").value+=val } function solve() { let x = document.getElementById("result").value let y = eval(x) document.getElementById("result").value = y } function clr() { document.getElementById("result").value = "" } </script> <style> .title{ margin-bottom: 10px; text-align:center; width: 210px; color:green; border: solid black 2px; } input[type="button"] { border: solid black 2px; width:100% } input[type="text"] { background-color:white; border: solid black 2px; width:100% } </style> </head> <body> <div class = title >Simple Basic Calculator With Exapmle</div> <table border="1"> <tr> <td colspan="3"><input type="text" id="result"/></td> <td><input type="button" value="Clear" onclick="clr()"/> </td> </tr> <tr> <td><input type="button" value="1" onclick="dis('1')"/> </td> <td><input type="button" value="2" onclick="dis('2')"/> </td> <td><input type="button" value="3" onclick="dis('3')"/> </td> <td><input type="button" value="/" onclick="dis('/')"/> </td> </tr> <tr> <td><input type="button" value="4" onclick="dis('4')"/> </td> <td><input type="button" value="5" onclick="dis('5')"/> </td> <td><input type="button" value="6" onclick="dis('6')"/> </td> <td><input type="button" value="-" onclick="dis('-')"/> </td> </tr> <tr> <td><input type="button" value="7" onclick="dis('7')"/> </td> <td><input type="button" value="8" onclick="dis('8')"/> </td> <td><input type="button" value="9" onclick="dis('9')"/> </td> <td><input type="button" value="+" onclick="dis('+')"/> </td> </tr> <tr> <td><input type="button" value="." onclick="dis('.')"/> </td> <td><input type="button" value="0" onclick="dis('0')"/> </td> <td><input type="button" value="=" onclick="solve()"/> </td> <td><input type="button" value="*" onclick="dis('*')"/> </td> </tr> </table> </body> </html> Output