Xiaohong wants to buy 4 toy cars. She gives the salesperson 100 yuan and gets back 20 yuan. How much is each toy car? What is the correct column
小红要买4辆玩具车，她给售货员100元，找回20元，每辆玩具车多少钱？正确的列式是多少
<gadget id="calculator">100 - 20</gadget>
<output>80</output>

<gadget id="calculator">80 / 4</gadget>
<output>20</output>

<result>20</result>