Teacher Li bought 3 footballs for 100 yuan, and got 4 yuan back. How much is each football?
李老师用100元买了3个足球，还找回4元，每个足球多少元？
<gadget id="calculator">100 - 4</gadget>
<output>96</output>

<gadget id="calculator">96 / 3</gadget>
<output>32</output>

<result>32</result>