The length of a precision part is 1 mm, how many centimeters should it be drawn on the part drawing with a scale of 50:1.
一种精密零件的长是1mm，把它画在比例尺是50：1的零件图上应画多少cm．
<gadget id="calculator">50 / 1</gadget>
<output>50</output>

<gadget id="calculator">50 / 10</gadget>
<output>5</output>

<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<result>5</result>