Mr. Wang paid 100 yuan for 4 copies of "The King of Fairy Tales", and the auntie of the salesperson gave him 32 yuan. How much is each copy of "The King of Fairy Tales"?
王老师买4本《童话大王》付了100元，营业员阿姨找给他32元，每本《童话大王》多少元？
<gadget id="calculator">100 - 32</gadget>
<output>68</output>

<gadget id="calculator">68 / 4</gadget>
<output>17</output>

<result>17</result>