Buy 6 identical basketballs, pay 600 yuan, get back 54 yuan. How much is each basketball?
买6个相同的篮球，付出600元，找回54元．每个篮球多少元？
<gadget id="calculator">600 - 54</gadget>
<output>546</output>

<gadget id="calculator">546 / 6</gadget>
<output>91</output>

<result>91</result>