Teacher Zhang bought 8 footballs at the sports store, paid the cashier 550 yuan, and got 30 yuan back. Do you know how much each football is?
张老师在体育商店买了8个足球，付给收银员550元，找回30元．你知道每个足球多少元吗？
<gadget id="calculator">550 - 30</gadget>
<output>520</output>

<gadget id="calculator">520 / 8</gadget>
<output>65</output>

<result>65</result>