Dad bought 4 chairs at the furniture store, paid the salesperson 100 yuan, and got 8 yuan back. How much is each chair?
爸爸在家俱店购买了4把椅子，付给营业员100元，找回了8元．每把椅子多少元？
<gadget id="calculator">100 - 8</gadget>
<output>92</output>

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

<result>23</result>