The scale of a drawing of a precision part is 100:1, the length of a certain precision part is 5mm, how long is the precision part drawn on the drawing?
一张精密零件的图纸的比例尺是100：1，某精密零件的长度是5mm，该精密零件画在图纸上多长？
<gadget id="calculator">100 / 1</gadget>
<output>100</output>

<gadget id="calculator">5 * 100</gadget>
<output>500</output>

<result>500</result>