An electronic part is 5mm long, draw it on the drawing with a scale of 6:1, how many millimeters should be drawn for the electronic part.
一个电子零件长5毫米，用6：1的比例尺把它画在图纸上，电子零件应画多少毫米．
<gadget id="calculator">6 / 1</gadget>
<output>6</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<result>30</result>