The school bought 8 basketballs and 8 footballs. It costs 920 yuan to buy footballs and 576 yuan to buy basketballs. How much is a basketball cheaper than a football? (answer in two ways)
学校买了篮球、足球各8个，买足球用去920元，买篮球用去576元．一个篮球比一个足球便宜多少元？(用两种方法解答)
<gadget id="calculator">920 / 8</gadget>
<output>115</output>

<gadget id="calculator">576 / 8</gadget>
<output>72</output>

<gadget id="calculator">115 - 72</gadget>
<output>43</output>

<result>43</result>