Teacher Wang brought 500 yuan to buy 18 pencil cases, and got back 32 yuan. How much is each pencil case?
王老师带了500元去买18个文具盒，找回32元，每个文具盒多少钱？
<gadget id="calculator">500 - 32</gadget>
<output>468</output>

<gadget id="calculator">468 / 18</gadget>
<output>26</output>

<result>26</result>