If the length of a rectangle is 16 cm and the width is 6 cm less than the length, what is the perimeter in cm?
一个长方形的长是16厘米，宽比长少6厘米，周长是多少厘米．
<gadget id="calculator">16 - 6</gadget>
<output>10</output>

<gadget id="calculator">16 + 10</gadget>
<output>26</output>

<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<result>52</result>