Membuat Kalkulator Pakai HTML. caranya gampang cuma Copas aja code di bawah ini ke dalam Notepad, save dengan extensi .html dan ubah type menjadi all files
kodenya di bawah ya sob
"Salam Tokek Kesel"


<form NAME="Calc">
<table width="197" border="1">
<tr>
    <td width="187" align="center"><input TYPE="text"   NAME="Input" Size="24"><br /></td>
  </tr>
<tr>
    <td height="78"><table width="100%" border="1">
<tr>
        <td width="39" align="center"><input type="button" name="one2"   value="  1  " onclick="Calc.Input.value += '1'" /></td>
        <td width="39" align="center"><input type="button" name="two2"   value="  2  " onclick="Calc.Input.value += '2'" /></td>
        <td width="39" align="center"><input type="button" name="three2" value="  3  " onclick="Calc.Input.value += '3'" /></td>
        <td width="23" align="center"><input type="button" name="times2" value="  x  " onclick="Calc.Input.value += ' * '" /></td>
      </tr>
<tr>
        <td align="center"><input type="button" name="four2"  value="  4  " onclick="Calc.Input.value += '4'" /></td>
        <td align="center"><input type="button" name="five2"  value="  5  " onclick="Calc.Input.value += '5'" /></td>
        <td align="center"><input type="button" name="six2"   value="  6  " onclick="Calc.Input.value += '6'" /></td>
        <td align="center"><input type="button" name="div2"   value="  /  " onclick="Calc.Input.value += ' / '" /></td>
      </tr>
<tr>
        <td align="center"><input type="button" name="seven2" value="  7  " onclick="Calc.Input.value += '7'" /></td>
        <td align="center"><input type="button" name="eight2" value="  8  " onclick="Calc.Input.value += '8'" /></td>
        <td align="center"><input type="button" name="nine2"  value="  9  " onclick="Calc.Input.value += '9'" /></td>
        <td align="center"><input type="button" name="plus2"  value="  +  " onclick="Calc.Input.value += ' + '" /></td>
      </tr>
<tr>
        <td align="center"><input type="button" name="clear2" value="  c  " onclick="Calc.Input.value = ''" /></td>
        <td align="center"><input type="button" name="zero2"  value="  0  " onclick="Calc.Input.value += '0'" /></td>
        <td align="center"><input type="button" name="DoIt2"  value="  =  " onclick="Calc.Input.value = eval(Calc.Input.value)" /></td>
        <td align="center"><input type="button" name="minus2" value="  -  " onclick="Calc.Input.value += ' - '" /></td>
      </tr>
</table>
<p align="center">
Kalkulator By Tokek Kesel </p>
</td>
  </tr>
</table>
</FORM> <br>

(jikan anda ingin menaruh Kalkulator ini di Blog cukup copy-paste code kedalam HTML/Javascript.)