Buy 4 dictionaries, pay the salesperson 100 yuan, get back 8 yuan, how much is each dictionary?
买4本字典，付给售货员100元，找回8元，每本字典多少元？
<gadget id="calculator">100 - 8</gadget>
<output>92</output>

<gadget id="calculator">92 / 4</gadget>
<output>23</output>

<result>23</result>