The kindergarten bought 1 small football and 5 small balls, which cost a total of 40 yuan. A small football is 10 yuan. How much is a small ball? What is the correct column
幼儿园买了1个小足球和5个小皮球，一共花了40元，一个小足球10元，一个小皮球多少钱？正确的列式是多少
<gadget id="calculator">40 - 10</gadget>
<output>30</output>

<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<result>6</result>