Aunt Zhang brought 500 yuan to the furniture store to buy hanging lamps, each lamp was 89 yuan, and she got back 55 yuan. How many hanging lamps did Aunt Zhang buy?
张阿姨带了500元到家具城买挂灯，每盏灯89元，找回55元．张阿姨买了几盏挂灯？
<gadget id="calculator">500 - 55</gadget>
<output>445</output>

<gadget id="calculator">445 / 89</gadget>
<output>5</output>

<result>5</result>