Use 76 cm iron wire to make a rectangle. If the width is 16 cm, what should be the length?
用76厘米的铁丝，做一个长方形，要使宽是16厘米，长应是多少？
<gadget id="calculator">76 / 2</gadget>
<output>38</output>

<gadget id="calculator">38 - 16</gadget>
<output>22</output>

<result>22</result>