48 cm long wire is used to form a rectangle, the length of the rectangle is 18 cm, and the width is mm.
用一根48厘米长的铁丝围成一个长方形，长方形的长是18厘米，宽是多少毫米．
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 - 18</gadget>
<output>6</output>

<gadget id="calculator">6 * 10</gadget>
<output>60</output>

<result>60</result>